About Brightness
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About Light Appearance
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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.
Halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat.
| 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, $ | Each | |
Pointed Bulb—Miniature Candelabra Base (7/16" Dia.) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC/120V DC | ||||||||||||
| 500W | Warm (2,950K) | 10,450 | Halogen | Dimmable | T4 | Glass | Clear | 500W | 2,000 | 60.30 | 0000000 | 000000 |
Bayonet Base Light Bulbs
Pins on the base lock these bulbs into sockets to withstand vibration. They're often used in machines and elevators. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh.
Voltage | Wattage | Light Appearance | Brightness, lumens | Bulb Trade Number | Light Technology | Bulb Shape No. | Color | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Pkg. Qty. | Pkg. | |
Double Contact—Small Base (0.59" Dia.) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pointed Bulb | ||||||||||||||
| 120V AC | 100W | Warm (2,950K) | 1,900 | 100Q/CL/DC, ESR | Halogen | T4 | Clear | 1,000 | 12.10 | 1/2" | 2.5" | 1 | 0000000 | 000000 |
| 120V AC/120V DC | 150W | Warm (2,950K) | 2,800 | 150Q/CL/DC, ETC | Halogen | T4 | Clear | 2,000 | 18.10 | 1/2" | 2.5" | 1 | 0000000 | 00000 |
| 120V AC/120V DC | 250W | Warm (2,950K) | 5,000 | 250Q/CL/DC, ESS | Halogen | T4 | Clear | 2,000 | 30.20 | 1/2" | 3.13" | 1 | 000000 | 00000 |