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