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.
CFL (compact fluorescent) bulbs are more energy efficient and last longer than halogen bulbs. It takes several seconds for them to reach full brightness. They contain small amounts of mercury (for disposal information, visit www.epa.gov/cfl).
Halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat.
Bulbs that cannot be sold to the listed regions do not meet energy efficiency and/or mercury regulations.
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, $ | Cannot Be Sold To | Pkg. Qty. | Pkg. | |
Spiral Bulb—Medium (Standard Household) Base (1 1/16" Dia.) | ||||||||||||||
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120V AC | ||||||||||||||
500W | Daylight (6,500K) | 6,400 | CFL | Not Dimmable | __ | Glass | Frosted | 105W | 7,600 | 12.70 | Canada, CA, MA, OR, RI, VT | 1 | 0000000 | 000000 |
500W | Daylight (6,500K) | 6,400 | CFL | Not Dimmable | __ | Glass | Frosted | 105W | 7,600 | 12.70 | Canada, CA, MA, OR, RI, VT | 6 | 00000000 | 000000 |
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 | 00000 |
Recessed Single-Contact Base Light Bulbs
These slender bulbs are used in lamps and task lights. 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. 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.
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. | Pkg. Qty. | Pkg. | |
Tubular Bulb—1/4" Base Dia. | ||||||||||||||
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120V AC | ||||||||||||||
500W | Warm (2,900K) | 9,500 | Horizontal | 500T3Q/CL | Halogen | T3 | Clear | 1,500 | 60.23 | 3/8" | 4 11/16" | 1 | 000000 | 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.) | ||||||||||||||
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Pointed Bulb | ||||||||||||||
120V AC/120V DC | 500W | Neutral (3,050K) | 11,000 | Base Down, Horizontal | BTL | Halogen | T6 | Clear | 500 | 60.22 | 3/4" | 5" | 0000000 | 000000 |
120V AC/120V DC | 500W | Neutral (3,200K) | 13,000 | Base Down, Horizontal | BTM | Halogen | T6 | Clear | 100 | 60.22 | 3/4" | 5" | 0000000 | 00000 |
LED Light Bulbs for High-Intensity Discharge (HID) Lights
Replace high-intensity discharge (HID) lights with the longer-lasting, energy-efficient LEDs. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. LED lights are perceived as brighter at night than high-intensity discharge light technologies, so they require fewer lumens to provide the same brightness. Match your old light’s wattage to find the right LED bulb. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.
Ballast bypass bulbs eliminate the need for a ballast, so the socket must be wired directly to the power source.
Equiv. Bulb Wattage | ||||||||||||
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Metal Halide | High-Pressure Sodium | Light Appearance | Brightness, lumens | Operating Position | Bulb Dia. | O'all Lg. | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Specifications Met | Each | |
Ballast Bypass | ||||||||||||
Tubular Bulb—EX39 Mogul Base | ||||||||||||
500W | 500W | Cool (5,000K) | 17,400 | Base Up, Base Down, Horizontal | 5 1/8" | 11 1/8" | 120W | 50,000 | 14.45 | UL Listed, C-UL Listed | 00000000 | 0000000 |