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For Ballast Type For Ballast Type |
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Rated Life Rated Life |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Replacing Tubular Fluorescent Light Bulbs
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About Brightness
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About Light Appearance
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Recessed Double-Contact Base Tubular Light Bulbs


Brightness is measured in lumens; the higher the lumens, the brighter the bulb. Color rendering index (CRI) is a measurement on a scale of 0-100 of how accurately the light from a bulb represents an object's true colors; the higher the number, the more natural the colors appear. Any CRI value over 80 will show colors true to life. Bulbs with a warm light appearance have yellow tones. Bulbs with a neutral light appearance are often used in workspaces. Bulbs with a cool light appearance have white/blue tones and are good for inspecting. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.
Fluorescent bulbs are energy efficient, but they contain small amounts of mercury (for disposal information, visit www.epa.gov/cfl).
Bulbs that cannot be sold to the regions listed exceed local regulatory limits on mercury.
O'all Lg. | Equiv. Fluorescent Bulb Wattage | Light Appearance | Brightness, lumens | CRI | Light Setting | Bulb Material | Light Technology | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Trade No. | Cannot Be Sold To | Pkg. Qty. | Pkg. | |
T12/HO Bulb (1 1/2" Dia.) | |||||||||||||||
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24" | 35W | Cool (4,200K) | 1,650 | 60 | Dimmable | Glass | Fluorescent | 35W | 9,000 | 4.22 | F24T12/HO | Canada | 6 | 0000000 | 0000000 |
48" | 60W | Cool (4,100K) | 4,050 | 59 | Dimmable | Glass | Fluorescent | 60W | 12,000 | 7.23 | F48T12/HO | Canada | 6 | 0000000 | 000000 |