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Putting the spotlight on HiD and leD lighting
High intensity gas discharge lightingKondinin Group last looked at machinery
lighting during 2001. Back then, High intensity gas discharge lighting (HID) technology was new on the scene and impressed researchers with the comparative performance over conventional halogen lighting. Ten years on and there are hundreds of HID lights on the market.
In addition to familiar names such as Hella, Narva and Lightforce, there are also numerous imported Chinese models available, each with varying levels of build quality.
HID lights generate light by ionising, or eclectically exciting, pressurised gasses, such as Xenon in a glass, quartz or ceramic tube. Typically this requires a high voltage to start the light arc, which is why all HID lights will have an electrical ‘ballast’ to initially invert the 12-volt input to thousands of volts.
light emitting diode lightingAnd while HID is establishing itself as
the lighting benchmark, the buzz talk from outside agricultural lighting circles is about LED technology. Four-wheel-drive
enthusiasts, who go to extremes to light up their world, have taken a liking to LED light bars which are available in numerous lengths, up to 1.3 metres. As with HID lights, LED lights do not have a fi lament that will burn out, but produce light through the movement of electrons in a semi-conductor material.
And while the electronics behind LED lights is much more complex, and the initial cost is relatively high, the good news for farmers is that they are effi cient and can produce comparable light output to HID lights using a similar current draw.
Things to consider when buying lightsIf you have installed some of these HID
lights on your tractor and have noticed that your GPS guidance system regularly loses signal around sunset, or your radio suffers from interference around the same time, chances are that your HID lights are not shielded. Shielded HID lights protect other electrically sensitive equipment from the electrical ‘noise’ produced by the HID ballast. Suggested solutions are to move your HID lights away from aerials or replace them with shielded HID lights.
retro-fi tting lightsKits to upgrade your existing halogen
lights to HID are available from retailers such as AAVS. The installation of these kits is relatively simple. However, Kondinin Group recommends buying a kit with a shielded ballast and enlisting the services of an auto electrician to wire the lights using good quality fl exible conduit and waterproof wiring connectors such as ‘Deutsch-plugs’.
Kondinin Group engineers fi tted a number of aftermarket hiD kits with shielded ballasts to halogen work lamps to evaluate their performance.
How we testedAfter setting up a grid of indicator markers
at set distances from the light source, lights were positioned 3m from ground level (see Figure 1).
A dual-approach to evaluating light output from the supplied lamps was taken.
Ben White Chris WarrickFOr KONDiNiN grOuP
MachineryEquipmEnt lighting
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high intensity gas discharge (hiD) and light emitting diode (LeD) lighting technology is fast emerging as a replacement for conventional halogen lighting on farm machinery. Kondinin Group engineer Ben White teamed up with researcher chris Warrick to burn the midnight oil in an effort to shed light on the performance of these two new lighting technologies.
to position all lights at a common height of 3m above ground
level, HID and LED lights were angled at a nominal
10 degrees to illuminate a grid of indicator markers at fixed distances.
Light output measurements were then taken at common points using a
hand-held light meter
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Control tower: The safety cage on a telehandler ready to elevate another light for testing. All other light sources were switched off for testing so that the only light source was the lamp being tested. Researchers even organised for the moon to be placed behind some heavy cloud!
In addition to recording a number of light level readings at nodes, a camera was positioned at 2m high in the same spot for every light test.
Using identical aperture, shutter speed and colour temperature settings, the resulting photographs for each light portray the relative performance of the light under the same conditions.
All lights were powered using a laboratory power supply delivering a constant12v DC drawing as much current as required.
The only variable in the testing procedure was the angle at which the light was positioned with a nominal 10-degrees down from horizontal having slight adjustments made to optimise light output for farming applications.
How to read the resultsA photo speaks a thousand words and
while the photographs in this report are good indicators of light quality, it will also pay to compare the light intensity measurements.
The results listed with each light were measured in ‘Lux’, which is equal to one
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Welcome to LIGHTFORCE country.
After the sun goes down, we create history.
www.lightforce.net.au
Supplier: SpeakerLight Model: Speaker 6” Trapezoid with Halogen 60watt globe Price: Expect to pay $125 inc GSTCurrent Draw (A): 4Angle of light (degrees from vertical): 5Light output measured at C1 & C3 (Lux): 4.5Light output at F2 (Lux): 2.1Brightest point on grid (Lux): 8.4At point: C2
Supplier: Speaker (with AAVS HID kit)Light Model: Speaker 6” Trapezoid HIDPrice: Expect to pay $125 for light + $185 for HID kit (inc GST)Current Draw (A): 4Angle of light (degrees from vertical): 6Light output measured at C1 & C3 (Lux): 33Light output at F2 (Lux): 2.3Brightest point on grid (Lux): 53At point: C2
“lumen” (light power) per square metre. Higher Lux readings indicate higher light intensity. Using the benchmark developed during the last testing, Kondinin Group researchers deemed 0.5 Lux to be a suitable minimum for operating agricultural machinery.
Being the dominant light required for agricultural machinery operations, this report focussed predominantly on work lamps. Some suppliers also provided spot-style lights which, while not suited to this test environment certainly have application when in the harvester searching for the field bin at night.
Specifications and test results
ContaCt Ben White is an engineer for Kondinin Group
Three bolt mounting bracket provides superior mounting strength and durability (work lamps only)
Fully sealed (IP68) with pre‑wired powder coated die‑cast aluminium enclosure
Hard wired cable with Deutsch connector fitted and matching connector supplied
Robust cross slider multi‑angle bracketry system with stainless steel fittings (light bars only)
HIGH POWERED L.E.D WORK LAMPS
A NEW ERA OFAGRICULTURALLIGHTING
Leading the way in L.E.D technology, Narva has lifted the bar with an all new range of heavy duty high powered L.E.D work lamps and light bars.
With trouble free operational life in excess of 50,000 hours and Narva’s 5 Year L.E.D Warranty the new Narva work lamps use high performance 10 watt L.E.Ds with low current draw providing instant illumination.
Designed for harsh operational conditions such as mining, contracting, forestry and agriculture.
Available in a range of sizes with outputs from 4,500 lumens to an amazing 15,000 lumens, these L.E.D work lamps produce up to three times the light output of H.I.D.
* This warranty guarantees the operation of the L.E.D components for a period of 5 years and does not cover physical damage, abuse or normal wear and tear.
991mm
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Supplier: Snake RacingLight Model: Dually D2 LED Wide beam pair RRP ($ inc GST): 390/pairCurrent Draw (A): 2Angle of light (degrees from vertical): 12Light output measured at C1 & C3 (Lux): 4.3Light output at F2 (Lux): 4.2Brightest point on grid (Lux): 126At point: B2
Supplier: Snake RacingLight Model: 50” LED bar RRP ($ inc GST): 1500Current Draw (A): 16Angle of light (degrees from vertical): approx. 7Light output measured at C1 & C3 (Lux): 14.45Light output at F2 (Lux): 62Brightest point on grid (Lux): 426At point: C/D2
Manufacturer: Hella (with AAVS HID kit)Light Model: AS 500 FF Halogen H3 NB (Fully Shielded)Price: Expect to pay $600–700 for light + $185 for HID kit (inc GST)Current Draw (A): 4Angle of light (degrees from vertical): 11.5Light output measured at C1 & C3 (Lux): 28.25Light output at F2 (Lux): 3.1Brightest point on grid (Lux): 63At point: A/B2
Manufacturer: Hella (with AAVS HID kit)Light Model: Module 70 H9 Halogen Price: Expect to pay $200 for light + $185 for HID kit (inc GST)Current Draw (A): 4Angle of light (degrees from vertical): 10Light output measured at C1 & C3 (Lux): 4.35Light output at F2 (Lux): 5.2Brightest point on grid (Lux): 270At point: C/D2
Manufacturer: Hella (with AAVS HID kit)Light Model: Ultra beam FF Halogen NB Price: Expect to pay $345 for light + $185 for HID kit (inc GST)Current Draw (A): 4Angle of light (degrees from vertical): 8.5Light output measured at C1 & C3 (Lux): 25.75Light output at F2 (Lux): 3Brightest point on grid (Lux): 77At point: A/B2
Manufacturer: Hella (with AAVS HID kit)Light Model: Ultra beam FF Halogen NBPrice: Expect to pay $345 for light + $185 for HID kit (inc GST)Current Draw (A): 4Angle of light (degrees from vertical): 8Light output measured at C1 & C3 (Lux): 34Light output at F2 (Lux): 1.5Brightest point on grid (Lux): 72At point: B/C2
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Supplier: Hella AustraliaLight Model: Module 70 worklamp 1547LEDPrice: Expect to pay $240.90 inc GSTCurrent Draw (A): 1Angle of light (degrees from vertical): 13Light output measured at C1 & C3 (Lux): 5Light output at F2 (Lux): 0.8 or 2 @E2Brightest point on grid (Lux): 31At point: B2
Supplier: Hella AustraliaLight Model: Luminator Compact Xeon 1384Price: Expect to pay $888 (inc GST)Current Draw (A): 3Angle of light (degrees from vertical): 4Light output measured at C1 & C3 (Lux): 1.9Light output at F2 (Lux): 13.2Brightest point on grid (Lux): 60At point: D/E2
Supplier: Hella AustraliaLight Model: Mega Beam work lamp 1539LEDPrice: Expect to pay $223 (inc GST)Current Draw (A): 1Angle of light (degrees from vertical): 15Light output measured at C1 & C3 (Lux): 5.35Light output at F2 (Lux): 0.8 or 2 @E2Brightest point on grid (Lux): 37At point: A/B2
Supplier: Hella AustraliaLight Model: Ultra Beam Xeon 1534G5Price: Expect to pay $880 (inc GST)Current Draw (A): 3Angle of light (degrees from vertical): 10Light output measured at C1 & C3 (Lux): 17.5Light output at F2 (Lux): 3.9Brightest point on grid (Lux): 50At point: A/B2
Supplier: NARVALight Model: LED 300L work lamp 72446RRP ($ inc GST): 125Current Draw (A): 0Angle of light (degrees from vertical): 15Light output measured at C1 & C3 (Lux): 1.2Light output at F2 (Lux): 0Brightest point on grid (Lux): 13At point: A2
Supplier: NARVALight Model: LED 850L work lamp 72449RRP ($ inc GST): 230Current Draw (A): 0.5Angle of light (degrees from vertical): 13Light output measured at C1 & C3 (Lux): 2.5Light output at F2 (Lux): 0Brightest point on grid (Lux): 23At point: A2