1 THE GOOD THE BAD AND THE UGLY STAN WALERCYK, CLEP, LC LIGHTING WIZARDS 8/25/10 version STAN WALERCYK, CLEP, LC LIGHTING WIZARDS 8/25/10 version.

1

THE GOODTHE BAD

AND THE UGLY

THE GOODTHE BAD

AND THE UGLY

STAN WALERCYK, CLEP, LC

LIGHTING WIZARDS8/25/10 version

STAN WALERCYK, CLEP, LC

LIGHTING WIZARDS8/25/10 version

2

STAN WALERCZYK’S BIO• 21 years experience

– Distribution, maintenance, installer, retrofit contractor, fixture designer, consultant, lighting designer, policy maker, researcher

• Often in unique position dealing with lighting designers and retrofitters • 500+ projects• 30+ published articles• 600+ seminars, including (and none considered me just a retrofitter)

– 3 Lightfairs– 3 IESNA Annual Conferences– Several IESNA Sections

• IESNA Member 1995 - 2008– Served on several committees– Currently on Visual Effects of Lamp Spectral Distribution Committee

• Certified Lighting Energy Professional by AEE– CLEP Review Board member

• Lighting Certified by NCQLP• Assisted on DOE spectrally enhanced lighting research• DOE CALiPER Guidance Committee member

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LOTS OF SLIDES WITH LIMITED TIME

• So please hold questions till the end

• If you want an electronic version of this ppt, email me– Contact info is on last slide

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BEFORE WE REALLY GET GOING• This presentation is based on my perspective and

mainly retrofit experience– Glad that most clients really liked what I did– But there are several projects I consider mistakes and

wish I would have specified them much differently

• You may have quite different perspectives and experience and have found what works for you and your clients

• But we can all learn from each other– Including different

• Perspectives • Successes & failures

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BEFORE WE REALLY GET GOING• Retrofit

– There are many good retrofit projects– But there also way too many that just focused on energy savings

and paybacks, but the lighting quality and/or flexibility was really bad

• Wish I never delamped the 2x4 18 cell parabolics with repositioned lamp holders, reflector and keeping the louvers in the one Kaiser office many years ago

• In general, if retrofitters had to do their normal work in the spaces that they specify the retrofits for, the design would often be much different

– Over the years several end-customers hired me to design re-retrofits, not to save more energy, but to improve lighting quality and/or flexibility

– Too much lamp for lamp with reduced wattage T8s and low BF ballast, which

• Does not really improve light quality

• Makes customer have to buy and recycle extra lamps down the road

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BEFORE WE REALLY GET GOING• New construction and gut rehab

– There are many very good projects– But there are too many projects that have

• Way too many and often expensive lamp types– Selecting a fixture for the looks, even though the lamp is not

specified in any other fixture in the project

• Dimming ballasts, when really not necessary• Not the most efficacious lamps, ballasts and fixtures• Hard to access fixtures (to and into)• Complex control systems• Too high power density and electric bills

– Title 24 can be used as a back stop and every watt in a space is used

» And Title 24 is worst allowable

– Check out following letter to the editor

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BEFORE WE REALLY GET GOING• LD+A published my letter to the editor in the December

2005 edition– Reading October's Over & Out in LD+A, confirmed my

experience that very few lighting designers check with maintenance and facility people two to four years after their buildings have been built. If more lighting designers asked maintenance and facility people what they think of the number of lamp types, lamp life, lamp costs, accessibility inside fixtures, and ease of maintaining lighting control systems, I think that many lighting designers would change how they do design. A good chunk of my retrofit business is from end users in buildings that have good quality and energy efficient lighting, but the maintenance costs are very high. I appreciate the business, but would prefer if more lighting designers would walk a mile in the shoes of maintenance and facility people in the first place.

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BEFORE WE REALLY GET GOING• Based on facility managers’ requests over the

years, retrofitters have gotten very good at the following, especially over the last few years, when facility and maintenance staffs have downsized so much and 1 person now does what 2 or 3 people did in the past– Minimizing lamp types and eliminating expensive and

single source lamps• An example is going with 2’ F17T8s or overlapping 4’ F32T8s to

get rid of 3’ F25T8s

– Specifying long life lamps often with program start ballasts

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EACH OF YOU CAN

JUDGE IF EACH TOPIC IS

GOODBAD

UGLY

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KELVIN

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KELVIN• For offices, schools, etc.

– It seems like lighting designers and architects prefer 3000 or 3500K

• Because warm color tone and/or because think neutral• Because of some of the lighting designers that were here in the

80s and 90s, higher percentage of 3000K here than almost anyplace else

– While most energy efficient consultants and retrofitters prefer 4100 or 5000K

• And love to see buildings with 3000 or 3500K, because know can save extra wattage with using high Kelvin spectrally enhanced lighting

• End customers pick 5000K in about 80% of my projects

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3500K AIN’T NEUTRAL• It is my experience, that many lighting designers and

architects consider 3500K neutral, because in between old WW (3000K) and CW (4100K)– And they would usually confirm that idea when they gave their clients

a choice of 3000, 3500 and 4100 Kelvin lamps with the same CRI

• But as I and other lighting professionals have learned, is that when you give people a choice of three Kelvins, they typically pick the one in the middle, so if you give them…– 3500, 4100 and 5000 Kelvin, they typically pick 4100K– 4100, 5000 and 6500 Kelvin, they typically pick 5000K

• In both phases 1 and 2 in the DOE research, there was no statistical preference of lower Kelvin compared to 5000K after 2 - 3 weeks, so who cares about initial preference

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PICK KELVIN FIRST• With 5000K, or other high Kelvin lamps

– Pick the Kelvin first and then look at paint, flooring, furniture colors under that light before they are selected

– It does not have to look sterile• For example pick white paints with some warm color

tones

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EVEN THE BEST CHANGE…

• Even the best change can be considered bad, because some people have to adjust

• So– Inform

– Allow 2 – 3 weeks

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WHAT DO YOU THINK IS THE HIGHEST SELLING KELVIN WORLD WIDE?

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6500K

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NOTES ON 8000K• In the one 2x4 ceiling fixture in my office, I went from 4 F32T8 741s to 2 F32T8

850s to 1 F32T8 880

• From Rod Heller, LC, Energy Performance Specialists, Wisconsin www.energyperformance.net (July 29, 2009)

– American Family Insurance• We are in the process of testing 8000K lamps for a major installation at American Family and

my contact at the company went to a meeting in a conference room and forgot his glasses. He could not read the documents in front of him at the meeting, but sat through it until lunch. Over lunch, he had maintenance change the lights from 735 lamps to the 8000K lamps. When he got back to meeting he was amazed that he could read without his glasses. It was not as easy as having his glasses, but he could read the documents.

– Goodyear

• I did a trial installation of the 8000K lamps in this facility. I took them 1 case of lamps and they were installed in a couple of offices. By the time they got to the end of the box, people were fighting over who got the last lamps. We then re-lamped all the offices. The one comment I heard back was from the head of human resources. She stated this is the first time since she had Lasik surgery that she has come to work and her eyes did not water. I have no idea why, but it does warrant further investigation.

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brightness paper computer

P(S/P).5 P(S/P).78 P(S/P)1.0

F34T12 CW 2300 1.50 2817 3156 3450F34T12 WW 2350 1.00 2350 2350 2350F32T8 730 2650 1.19 2891 3035 3154F32T8 735 2650 1.30 3021 3252 3445F32T8 741 2650 1.56 3310 3749 4134

F32T8 830 2nd 2800 1.29 3180 3415 3612F32T8 835 2nd 2800 1.41 3325 3661 3948F32T8 841 2nd 2800 1.62 3564 4079 4536F32T8 830 3rd 2950 1.29 3351 3598 3806F32T8 835 3rd 2950 1.41 3503 3857 4160F32T8 841 3rd 2950 1.62 3755 4298 4779F32T8 850 3rd 2950 1.95 4119 4966 5753

F32T8 865 2750 2.20 4079 5087 6050F32T8 880 2518 2.50 3981 5146 6295

S/P Info for 32W F32T8s and 34W F34T12s

Prepared by Stan Walerczyk, www.lightingwizards.com, 1/1/10 version

lampmean photopic

(catalog) lumensS/P ratio

notes : Lumens and S/P ratios can vary among lamps and manufacturers.Listed F32T8 865 is Sylvania XPS. Listed F32T8 880 is Sylvania Skywhite XP.

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17,000K• One major manufacturer has a new line of

lamps, available with 17,000K

• At this time more common in Europe

• 17,000K makes 5000K look warm white

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WHAT ABOUT THE KRUITHOF EFFECT?• IESNA Lighting Handbook, 9th Edition, 3-40&41

– Experiments examining the psychological effects of varying CCT and illuminance have suggested that using lamps with high CCT values at low illuminances will make a space appear cold and dim. Conversely, using lamps with low CCT values at high illuminances will make the space appear artificial and overly colorful. Figure 3-53 illustrates this so-called Kruithof effect. Although these findings have been broadly replicated, other investigators have failed to find a similar tradeoff of CCT and illuminance. Rather they found that when people spent sufficient time in the room for color adaptation to occur, the perceptions of rooms lighted with lamps of different color temperature was dominated by illuminance. This implies that where color adaptation occurs with no opportunity to compare lamps with different CCTs the CCT of the light source is relatively unimportant to perception. Where comparisons can be made or color adaptation does not occur, CCT is more likely to be important. At the very least this confusion means that the widespread belief about the tradeoff of CCT and illuminance should be treated with some skepticism.

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WHAT ABOUT THE IES AND SPECTRALLY ENHANCED LIGHTING?

• IES Visual Effects of Lamp Spectral Distribution Committee– Chair

• Brian Liebel, who recently move from California to Florida

– Secretary• Tom Tolen, who is in the San Francisco Bay Area

– Other local members include• Dr. Sam Berman, people from the major lamp manufacturers, others and me

– Our TM-24 should be ready soon

• Before the IES accepts spectrally enhanced lighting– I go below IES photopic footcandles if customer will sign off on it

• Except for critical areas like stairwells, carpenter shops, etc.

– I go for bottom of IES photopic footcandle range if customer will not sign off on going below

• IES Board of Directors recently unanimously approved to revise PS-02-09 • Side note

– PG&E’s and some other utilities’ tool lending libraries’ have photopic - scotopic light meters, which can be borrowed for free

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T8s vs.

T5s & T5HOs

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T8s vs. T5s & T5HOs• Yes, T5s & T5HOs are newer and smaller

than T8s, but are they really better than T8s?

• Check out the following table, which is based on optimal temperatures of 77F for T8s and 95F for T5s & T5HOs

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4' lamp type

initial catalog or photopic

lamp lumens

lamp watts

lamp lumens

per lamp watts

lamp quant

ballast type

standard ballast factor

system watts

initial system lumens

initial system lumens per watt

mean or 8000 hour

lumen maint- enance

mean or 8000 hour

system lumens

mean or 8000 hour

system lumens per

watt

3100 32 96.9 2 EE IS 0.87 53 5394 101.8 95% 5124 96.73100 32 96.9 2 EE PS 1.15 70 7130 101.9 95% 6774 96.83100 32 96.9 2 G IS 0.87 58 5394 93.0 95% 5124 88.42950 32 92.2 2 EE IS 0.87 53 5133 96.8 95% 4876 92.02950 32 92.2 2 G IS 0.87 58 5133 88.5 95% 4876 84.12800 32 87.5 2 EE IS 0.87 53 4872 91.9 95% 4628 87.32800 32 87.5 2 G IS 0.87 58 4872 84.0 95% 4628 79.82850 30 95.0 2 EE IS 0.87 51 4959 97.2 95% 4711 92.42850 30 95.0 2 G IS 0.87 55 4959 90.2 95% 4711 85.72750 28 98.2 2 EE IS 0.87 48 4785 99.7 95% 4546 94.72750 28 98.2 2 G IS 0.87 51 4785 93.8 95% 4546 89.12440 25 97.6 2 EE IS 0.87 42 4246 101.1 95% 4033 96.02440 25 97.6 2 G IS 0.87 47 4246 90.3 95% 4033 85.82400 25 96.0 2 EE IS 0.87 42 4176 99.4 95% 3967 94.52400 25 96.0 2 G IS 0.87 47 4176 88.9 95% 3967 84.4

high lumen F28T5 3050 28 108.9 2 EE PS 0.95 58 5795 99.9 93% 5389 92.9typical F28T5 2900 28 103.6 2 PS 1.00 64 5800 90.6 93% 5394 84.326W F28T5 2900 26 111.5 2 EE PS 0.95 55 5510 100.2 92% 5069 92.226W high lumen F28T5 3050 26 117.3 2 EE PS 1.15 67 7015 104.7 92% 6454 96.349W F54T5HO 5000 49 102.0 2 EE PS 1.00 105 10000 95.2 93% 9300 88.6typical F54T5HO 5000 54 92.6 2 PS 1.00 117 10000 85.5 93% 9300 79.5F34T12 800 3100 34 91.2 2 RS E 0.85 60 5270 87.8 93% 4901 81.7F34T12 CW 2650 34 77.9 2 RS M 0.88 72 4664 64.8 87% 4058 56.4

Prepared by Stan Walerczyk of Lighting Wizards www.lightingwizards.com 7/10/10 version

extra long life 25W F32T8

93% is used as an average EOL lumen maintenance for T5HOs. 90% - 94% range among manufacturers.All wattages based on 277V. EE IS is extra efficient instant start. G IS is generic instant start. EE PS is extra efficient program start. PS is program start. RS E is rapis start electronic. RS M is rapid start magnetic.Extra long life is 36,000 hours with IS and 40,000 hours with PS ballasts at 3 hour cycles.

In enclosed fixtures, since reduced wattage F32T8s consume less heat they can often operate closer to optimal 77 degrees F temperature, so may provide more light than this table shows compared to full wattage.Although efficacy can be improved with IS and RS ballasts with T5s and T5HOs, lamp life can be greatly reduced and lamp manufacturers may not warranty lamps.

4' LINEAR FLUORESCENT EFFICACY TABLE

notes: Lumens, lumen maintenance, ballast factors and wattages may vary among various manufacturers.

high performance F32T8

extra long life 2950 lumen F32T8

basic grade F32T8

30W F32T8

28W F32T8

25W F32T8

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T8s vs. T5s & T5HOs• High performance T8 and T5 systems have about

the same efficacy– But not that many people seem to be using the high

performance T5 systems

• High performance T8 systems are more efficacious than T5HOs – At optimal temperatures for each

• 22% than full wattage T5HOs• 9% than reduced wattage T5HOs

– Special note for suspended indirect/direct fixtures with lamps exposed in typical 70 - 75F ambient temperature

• 33% than full wattage T5HOs• 14% than reduced wattage T5HOs

26

T8s vs. T5s & T5HOs• Some fixture manufactures and others compare T5s and T5HOs to basic

grade T8s, generic electronic ballasts and fixtures with reflectors and optics really designed for 5/8” diameter lamps– Which makes T5s and T5HOs look artificially better

• I have heard that some fixture manufacturers, rep agents and distributors push T5 and T5HO fixtures, because better profit margins than T8 fixtures– Since T8 fixtures have been around longer, pricing tends to go down over

time

• There are a lot more BFs for T8s– Which helps fine tune light levels and wattage

• Mercury levels in T8s can be quite close to T5s & T5HOs– Some T5s and T5HOs have more mercury than some T8s

• Since T5s and T5HOs are smaller, more can fit in a container, so most of them are made overseas and shipped here– Most T8s are made in America, which helps keeps jobs here

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3 HR 12 HR 3 HR 12 HR

1st GENERATION - GENERIC 32 2800 75-78 2800 75-781.7 - <10

15,000 - 24,000

20,000 - 30,000

20,000 - 30,000

24,000 - 36,000

2nd GENERATION - GENERIC

32 2950 81-852800 - 2950

80-851.7 - <10

15,000 - 24,000

20,000 - 30,000

20,000 - 30,000

24,000 - 36,000

GE HL 32 3100 82 3000 80 3.95 25,000 36,000 36,000 42,000GE SXL 32 2850 81+ 2750 80 3.95 31,000 40,000 40,000 46,000PHILIPS ADV 32 3100 85 3100 82 1.7 24,000 30,000 30,000 36,000PHILIPS PLUS 32 2950 85 2850 82 1.7 30,000 36,000 36,000 42,000PHILIPS ADV XLL 32 2950 85 2850 82 1.7 36,000 40,000 40,000 46,000SYLVANIA XP 32 3000 85 2850 85 2.9 24,000 36,000 40,000 42,000SYLVANIA XPS 32 3100 85 3100 81 2.9 24,000 36,000 40,000 42,000SYLVANIA XP/XL 32 2950 85 2900 80 3.5 36,000 50,000 52,000 55,000GE SPX 28W 28 2725 82 2625 80 3.95 24,000 30,000 36,000 42,000PHILIPS ADV 28W 28 2725 85 2675 82 1.7 24,000 30,000 30,000 36,000SYLVANIA XP 28W 28 2725 85 2650 80 2.9 24,000 36,000 40,000 42,000SYLVANIA XP XL 28W 28 2600 85 2600 80 3.5 36,000 50,000 52,000 55,000GE SPX 25W 25 2400 85 2350 80 3.95 36,000 40,000 40,000 46,000PHILIPS ADV 25W 25 2500 85 2400 85 1.7 24,000 30,000 30,000 36,000PHILIPS ADV XLL 25W 25 2400 85 2350 82 1.7 36,000 40,000 40,000 46,000SYLVANIA XP 25W 25 2475 85 2400 80 2.9 24,000 36,000 40,000 42,000SYLVANIA XP XL 25W 25 2475 85 2400 80 3.5 36,000 50,000 52,000 55,000

F28T5 25-28 2900+ 85 2750+ 851.4 - 2.5

* *20,000 - 30,000

25000 - 40,000

F54T5HO 49-54 5000 85 4800+ 851.4 - 2.5

* *20,000 - 30,000

25000 - 40,000

Lamp manufacturers may alter rated lamp life and lumen specifications, so get updates from manufacturers.Prepared by Stan Walercyk of Lighing Wizards 5/15/10 version. www.lightingwizards.com

CATALOG LUMENS

CRICRI

5000K LAMP LIFE HOURSMAX MG

OF HG

4' T8 LAMP LIFE, LUMENS, CRI & MERCURY

INSTANT START PROGRAM STARTLAMP WATTS3000-4100K

CATALOG LUMENS

28

T5s & T5HOs• Please do not spec the same length

T5s and T5HOs on a project– Because down the road maintenance

people will probably put the wrong lamps in the fixtures

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U-BEND T8s• Most end customers want to get rid of U-

bend T8s, because they are– Expensive– Bulky to carry around– Extra recycling costs– Wattage can be significantly reduced with

F17T8s• But numerous 2x2 fixtures are not long enough for

F17T8s, so new fixtures are required

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PARABOLIC TROFFERS

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PARABOLIC TROFFERS• Hopefully nobody here still specifies parabolics,

except maybe for niche applications• But several manufacturers have designed very

good upscale kits from several manufacturers that– Allow delamping down to 2 or 1 lamps– Save substantial wattage– Eliminates the dreaded cave effect– Improves lighting quality

• I recently wrote a white paper that lists several manufacturers– You can request it by email

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PARABOLIC TROFFERS• Photo of a 1-lamp kit

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BASKET TROFFERS

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BASKET TROFFERS• These fixtures are often called indirect or indirect/direct

troffers, ceiling still dark• Many architects and lighting designers have been

specifying these fixtures over the last few years, often because of low glare, but– Usually very low fixture efficiency

• Sometimes below 60%

– Often very difficult to get to the ballast– These may be the parabolics of this century so far

• Although sometimes easy to delamp– Sometimes can be difficult to retrofit, especially if biax or T5s and

too short for T8s• Most end customers that I have dealt with HATE biax because

expensive, short life and not that good lumens per watt

35

BASKET TROFFERS• This is what I recently did at San Jose State University’s

Martin Luther King Library• Original

– 2x2 perf metal basket troffer with 2 40W 3000K biax lamps and thin white lens on top of metal basket

– 72W

• Retrofit– Although sides were shorter than 2’, there were round holes, so

F17T8s could be used– 2 high performance F17T8s, high performance1.17 BF parallel wired

program start ballast, custom socket kit on outside of fixture & custom high transmission white basket kit

– 38W– Increased light levels, even just photopic– $160 approximate cost

36

ONE VERY GOOD WAY TO GET VERY

LOW POWER DENSITIES AND GOOD

LIGHTING QUALITY/FLEXIBILITY

37

TASK - LOW AMBIENT• Can easily get .4 - .6 watts per square foot in offices including

ambient and task lights• Ambient examples

– High performance suspended indirect/direct fixtures with one T8 per cross section

– High performance 2x4 kit or troffer with 1 T8– High performance 2x4 kit or troffer with 2 T8s & .71 or .77 BF

• Task examples– LED undercabinet and/or desk mount fixtures

• Optional occupancy sensor

• If you haven’t seen it already, check out the PG&E Emerging Technologies Studies

– www.etcc-ca.com/project-search/search-results_m126/criteria:1/query:any/jr_endyear:2009/jr_organization:Pacific+Gas+and+Electric+%28PG%26E%29/order:alpha/page:2/limit:10/

– Would have even been lower power density with high performance fixed BF ballasts and/or higher Kelvin lamps

38

TROFFERSFLUORESCENT

vs. LED

39

FLUORESCENT vs. LED TROFFERS

• Based on DOE CALiPER testing there are some LED troffers than compare quite well to high performance T8 troffers with regard to wattage, lumens and distribution

• But the LED troffers cost about $300 - $350, while high performance T8 troffers cost about $100 - $150

• Also be aware– When each LED troffer reaches 50,000 hours or maybe slightly

longer, it may cost over $200 to retrofit or replace it– While T8 troffers can just get inexpensive lamps and ballasts

decade after decade

• Plus with present design, LED troffers will either provide excessive light to begin with or underlighting at end of rated life when LEDs lose 70% of initial lumens

40

LED vs.

INDUCTION

41

INDUCTION• Although one major manufacturer introduced induction in

1991 and another major manufacturer introduced their version in 1997– Induction has become quite popular over the last few years, mainly

from fixture manufacturers using lower priced Chinese and Korean induction lamps and generators

• Real useable life for induction is really more like 60,000 - 70,000 hours than 100,000 hours

• Bare lamp system lumens per watt is usually– <80 initially– <55 at 100,000 hours– And since a mature technology, probably will not improve much if

at all

• With such large coated lamps– Very little optical control

42

LED• LED fixtures have really improved, especially since last fall

– Efficacy• There are some LED fixtures that provide over 100 lumens per watt out

of the fixture

– Price reduction• Some LED recessed can kits now only cost $65 from distribution• LED cobraheads, which can replace 100 - 150W HPS, can cost $300

when quantity is at least 1000

• Although some exterior fixture manufacturers are stating over 150,000 hours for certain applications– 50,000+ is more realistic

• Manufacturers are working on improved lumens for lower Kelvin chips

43

LED vs. INDUCTION• I recently wrote a white paper on LED vs. Induction

focusing on streetlights– It is on my website with my other white papers

• When I visited a large LED manufacturer in North Carolina back east earlier this summer– Told that they will have 150 - 160 lumen per watt chips by

1Q11, which will be able to provide 120 - 130 lumens per watt out of fixtures at steady state temperature

• With LED’s continuing improvements and price reductions, I think that– Induction will be an afterthought in as little as 1 year– And some end customers will have a hard time getting

warranty support and replacement parts, especially from Chinese and Korean manufacturers

44

NOW SOME PHOTOS, SOME OF WHICH ARE

REALLY UGLY

45

46

47

48

49

NON-PASSIVE IR OCCUPANCY SENSOR

50

LIGHTING BLOOPERS• One arm of a local government said

– We’re going to do some new streetlighting– These cast poles will look super in our

town

• Another government office said– This is a historic building– The storefronts and the awnings need to

stay where they are

51

IF YOU ARE NOT ALREADY AWARE

• There is a big push to try to mandate controllable dimming or multi-stage ballasts in all new non-residential construction in the 2011 cycle of Title 24– Doug Avery at Southern California Edison

• Jim Benya is lead investigator• Francis Rubinstein and Michael Neils are also in core group

• If this is mandated, it would take choices away from you and your clients

• But may bring pricing down on these ballasts and controllers

52

IF YOU ARE NOT ALREADY AWARE

• Since I consider this very ugly, I spent a lot of time, focusing on the California Energy Commission, to stop this mandate, because often about the same or more wattage and KWH can be saved other ways for much less initial and long term costs and are more sustainable

• Since this is so important, you and your counterparts across the State could provide your input for or against

53

SEMINARS, WHICH UTILITIES, ASSOCIATION OF ENERGY ENGINEERS,

ETC. HAVE ME PRESENT• INTERIORS - LEDs vs. Incumbents

with a big dose of task ambient lighting• EXTERIOR LIGHTING

LED, Induction, HPS, MH, LEP, Fluorescent• FREE FOR ALL IN THE HIBAY ARENA Fluorescent, Induction, LED &

MH• HOW LOW CAN YOU GO

– Which is 1/2 of Advanced Lighting Retrofit Options

• DIMMING vs. NON-DIMMING 10 Rounds in the Daylight Harvesting and Peak Load Reduction Arena

• LIGHTING 101• LIGHTING CONTROLS

– 2011

• Also custom ones for specific purposes

54

WRAP UP

• Questions

• Comments

• Applications

55

THAT’S ALL FOLKS• Contact information for Stan Walerczyk

– 925-944-9481– [email protected]– www.lightingwizards.com

• Thanks for coming