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.
LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration. Plastic LED bulbs are shatterproof.
| 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. | |
Standard Bulb—Medium (Standard Household) Base (1 1/16" Dia.) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC | |||||||||||||
| 30W 70W 100W | Warm (2,700K) | 500 1,050 1,600 | LED | 3 Way | A21 | Plastic | Frosted | 5W 10W 16W | 25,000 | 0.60 1.20 1.93 | 1 | 0000000 | 000000 |
| 30W 70W 100W | Warm (2,700K) | 500 1,050 1,600 | LED | 3 Way | A21 | Plastic | Frosted | 5W 10W 16W | 25,000 | 0.60 1.20 1.93 | 12 | 0000000 | 000000 |
| 30W 70W 100W | Cool (5,000K) | 500 1,050 1,600 | LED | 3 Way | A21 | Plastic | Frosted | 5W 10W 16W | 25,000 | 0.60 1.20 1.93 | 1 | 0000000 | 00000 |
| 30W 70W 100W | Cool (5,000K) | 500 1,050 1,600 | LED | 3 Way | A21 | Plastic | Frosted | 5W 10W 16W | 25,000 | 0.60 1.20 1.93 | 12 | 0000000 | 000000 |
Contact-Lug Base Vehicle Headlamp Light Bulbs
Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
2-way bulbs operate at two brightness levels, as in high- and low-beam headlights.
| Bulb Trade Number | Voltage | Wattage | Light Appearance | Brightness, lumens | Light Technology | Light Setting | Bulb Material | Color | No. of Contact Lugs | Rated Life, hrs. | Bulb Dia. | O'all Lg. | Bulb Shape No. | Each | ||
| A | H1 70W/24V | 24V AC/24V DC | 70W | Warm (2,900K) | 1,900 | Halogen | Not Dimmable | Glass | Clear | 1 | 300 | 5/16" | 2 7/16" | T2 1/2 | 0000000 | 00000 |
| C | H3 70W/24V | 24V AC/24V DC | 70W | Warm (3,000K) | 1,750 | Halogen | Not Dimmable | Glass | Clear | 1 | 400 | 7/16" | 1 5/8" | T3 1/4 | 0000000 | 0000 |
| E | H4 75/70W 24V | 24V AC/24V DC | 70W 75W | Warm (2,900K) | 1,200 1,900 | Halogen | 2 Way | Glass | Clear | 3 | 150 300 | 11/16" | 3 5/8" | T4 5/8 | 00000000 | 00000 |
| E | H7 70W | 12V AC/12V DC | 70W | Warm (2,900K) | 1,750 | Halogen | Not Dimmable | Glass | Clear | 2 | 300 | 3/8" | 3 5/8" | T3 1/2 | 00000000 | 00000 |
Metal Halide Light Bulbs
Illuminate large warehouses, factories, and arenas with the bright, white light of these metal halide 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. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.
Pulse-start bulbs restart nearly twice as fast as probe-start bulbs.
Bulbs that cannot be sold to the listed areas exceed local regulatory limits on mercury content.
| Wattage | Light Appearance | Brightness, lumens | Bulb Shape No. | Operating Position | CRI | For Ballast ANSI No. | Start Type | Bulb Material | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Cannot Be Sold To | Each | |
For Enclosed Fixtures | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cone Bulb—E26 Medium (Standard Household) Base (1 1/16" Dia.) | |||||||||||||||
| 70W | Warm (3,000K) | 5,200 | E17 | Base Up, Base Down, Horizontal | 75 | M98 | Pulse | Glass | 15,000 | 8.43 | 2 1/8" | 5 7/16" | Canada | 0000000 | 000000 |
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 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Metal Halide | High-Pressure Sodium | Mercury Vapor | 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—E26 Medium (Standard Household) Base | |||||||||||||
| 70W | __ | __ | Warm (3,000K) | 2,400 | Base Up, Base Down, Horizontal | 2 5/16" | 5 13/16" | 18W | 50,000 | 2.17 | UL Listed, C-UL Listed | 00000000 | 000000 |
Tubular Bulb—EX39 Mogul Base | |||||||||||||
| 70W/100W/150W | 70W/100W/150W | 70W/100W/150W | Warm (3,000K) Neutral (4,000K) Cool (5,000K) | 3,170 3,333 3,360 | Base Up, Base Down, Horizontal | 3" | 7" | 12W, 18W, 24W | 50,000 | 2.89 | UL Listed, C-UL Listed | 0000000 | 00000 |
High-Pressure Sodium Light Bulbs
Illuminate parking lots and roads with the warm, yellow light of these high-pressure sodium 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. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh. Bulbs cannot be sold to Canada because they exceed local regulatory limits on mercury.
| Wattage | Light Appearance | Brightness, lumens | Bulb Shape No. | CRI | For Ballast ANSI No. | Restart Time, min. | End-of-Life Operation | Bulb Material | Color | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Cannot Be Sold To | Each | |
Cone Bulb | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
E26 Medium (Standard Household) Base (1 1/16" Dia.) | ||||||||||||||||
| 70W | Warm (1,900K) | 6,300 | ED17 | 22 | S62 | 1-5 | Cycling | Glass | Clear | 24,000 | 8.43 | 2 1/8" | 5 7/16" | Canada | 0000000 | 000000 |
E39 Mogul Base (1 5/8" Dia.) | ||||||||||||||||
| 70W | Warm (1,900K) | 6,300 | ED23 1/2 | 22 | S62 | 1-5 | Cycling | Glass | Clear | 30,000 | 8.43 | 2 15/16" | 7 3/4" | Canada | 000000 | 00000 |