Dialight LED Lighting Technology Comparison: Fluorescent
Dialight LED LightingTechnology Comparison: Fluorescent
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DialightTechnology Comparison
LED Fluorescent
Typical makeup of light source material
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DialightPower Consumption / Dimmability
Light Source Fixture Watts Dimmability
Fluorescent 40 – 264 Requires Special Ballast
LED 8 – 170 Yes
Energy savingsReplace 400W conventional light source with 150W LED High Bay for immediate energy savings of 60%, even more when you use dimming and proximity sensors.
DimmingDimming options for LEDs include STEP dimming for specified light level percentages or variable dimming for custom light output levels determined by the installer/customer. A special ballast is required to dim fluorescent lamps.
Bans“Under the terms of the National Energy Policy Act of 1992 (EPACT) and similar legislation in Canada many of the full wattage T12 lamps can no longer be manufactured due to their relative low efficacy and/or poor color characteristics” (The Lighting Handbook, IES, 10th ed., 7.32).
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DialightLumen Per Watt Efficiency
Light Source Lumens/watt
Fluorescent 40 – 100
LED Up to 150
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DialightLifetime / Lumen Maintenance
Light Source Lifetime in Hours (x1000)
Fluorescent 6 – 45
LED 100+
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DialightColour Quality
Light Source CRI
Fluorescent 60 – 90
LED 70 – 90
Colour Rendering Index:“A measure of the degree of colour shift that a set of test-colour samples undergoes when illuminated by the light source in question, as compared with those same test-colour samples when illuminated by a reference illuminate of comparable colour temperature” (The Lighting Handbook, IES, 10th ed., 6.13).
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DialightTemperature Ratings
Light Source T Rating
Fluorescent T4
LED T5
Ratings given at 40° C ambient temperature
Fluorescent LED
Temperature RatingsHeat producing equipment is marked with a Temperature Code to indicate the maximum surface temperature
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DialightMercury Content
Light Source Mercury Content
Fluorescent Avg. = 1.7mg – 15mgOlder lamps may contain 50mg+
LED 0mg
DisposalThe Resource Conservation and Recovery Act (RCRA) and the Universal Waste Rule (UWR) regulate the disposal of lamps containing mercury. LEDs themselves contain no mercury or harmful materials, which require special handling or unique recycling.
LEDMercury Content: 0 mg
MASTER TL-D Super 80 14W/865 1SL
Mercury Content: 5 mg
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DialightInstant On/Off
Light Source Warm Up Time
Fluorescent Instant – Couple of minutes
LED Instant
Fluorescent Ballast Options: Preheat, Rapid Start, Programmed Start and Instant Start
GE T8 Watt Miser: “Lamp warm-up time (i.e. when the lumen output reaches 90% of its maximum) is on average 2 minutes.”
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DialightOperating Temperatures
Light Source Operating Temperature (°C)
Fluorescent -29°C to 60°C
LED -55°C to 65°C
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DialightOperating Temperatures
Light Source Operating Temperature (°C)
Fluorescent -29°C to 60°C
LED -55°C to 65°C
Relative luminous flux for fluorescent in extreme temperatures
Relative luminous flux for LEDs in extreme temperatures