About Light Appearance
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About Brightness
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Screw-In Base Light Bulbs
Use these bulbs in standard sockets, panels, and appliances. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. Bulbs with a warm light appearance have yellow tones. Bulbs with a neutral light appearance are commonly used in workspaces. Bulbs with a cool or daylight appearance have white/blue tones and are good for inspecting. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh.
Incandescent bulbs are traditional light bulbs. Many have been phased out due to governmental energy requirements, but some are still available for special applications.
| Equiv. Incand. Bulb Wattage | Light Appearance | Brightness, lumens | Light Technology | Light Setting | Bulb Shape No. | Bulb Material | Color | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Pkg. Qty. | Pkg. | |
Tubular Bulb—Intermediate Base (11/16" Dia.) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC | |||||||||||||
| 15W | Warm (2,700K) | 108 | Incand. | Dimmable | T7 | Glass | Clear | 15W | 1,000 | 1.81 | 1 | 0000000 | 00000 |
Prefocus Base Light Bulbs
Small but powerful, these bulbs are commonly used in stage and security lighting. All have a neutral light appearance that is brighter than warm light. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh. These halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat.
Voltage | Wattage | Light Appearance | Brightness, lumens | Operating Position | Bulb Trade Number | Light Technology | Bulb Shape No. | Color | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Each | |
Single Contact—Medium Base (1 1/8" Dia.) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pointed Bulb | ||||||||||||||
| 120V AC/120V DC | 1,000W | Neutral (3,200K) | 28,500 | Base Down, Horizontal | BTR | Halogen | T7 | Clear | 250 | 120.45 | 7/8" | 5" | 0000000 | 000000 |