About Brightness
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About Light Appearance
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Bi-Pin 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 or daylight 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.
LED bulbs last longer and are more efficient than fluorescent bulbs. They generate little heat and withstand vibration. Ballast bypass bulbs eliminate the need for a ballast so the socket must be wired directly to the power source.
Plastic-coated glass bulbs are shatter resistant; the coating retains glass shards if they break.
O'all Lg. | Equiv. Fluorescent Bulb Wattage | Light Appearance | Brightness, lumens | CRI | Light Setting | Bulb Material | Light Technology | LED Installation Type | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Pkg. Qty. | Pkg. | |
T8 Bulb (1" Dia.) | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
24" | 17W | Warm (3,000K) | 1,125 | 80 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 9W | 50,000 | 1.08 | 25 | 0000000 | 0000000 |
24" | 17W | Neutral (3,500K) | 1,125 | 80 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 9W | 50,000 | 1.08 | 25 | 0000000 | 000000 |