About Replacing Tubular Fluorescent Light Bulbs
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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.
Incandescent bulbs are traditional light bulbs. Many have been phased out due to governmental energy requirements, but some are still available for special applications.
Bulbs that cannot be sold to the listed areas are restricted due to energy efficiency requirements, mercury regulations, and product registration requirements.
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. | |
Standard Bulb—Medium (Standard Household) Base (1 1/16" Dia.) | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC | ||||||||||||||
40W | Warm (2,700K) | 450 | LED | Dimmable | A15 | Glass | Clear | 5W | 15,000 | 0.60 | __ | 2 | 0000000 | 000000 |
40W | Warm (2,700K) | 450 | LED | Dimmable | A15 | Glass | Clear | 5W | 15,000 | 0.60 | __ | 12 | 0000000 | 00000 |
40W | Warm (2,700K) | 450 | LED | Dimmable | A19 | Glass | Clear | 5W | 15,000 | 0.60 | __ | 4 | 00000000 | 00000 |
40W | Warm (2,700K) | 450 | LED | Dimmable | A19 | Plastic | Frosted | 5W | 25,000 | 0.60 | __ | 1 | 00000000 | 0000 |
40W | Warm (2,700K) | 450 | LED | Dimmable | A19 | Plastic | Frosted | 5W | 25,000 | 0.60 | __ | 12 | 00000000 | 00000 |
40W | Warm (3,000K) | 450 | LED | Not Dimmable | A19 | Plastic | Frosted | 5W | 11,000 | 0.72 | __ | 4 | 00000000 | 00000 |
40W | Cool (5,000K) | 525 | LED | Dimmable | A19 | Plastic | Frosted | 6W | 25,000 | 0.72 | __ | 1 | 00000000 | 0000 |
40W | Cool (5,000K) | 525 | LED | Dimmable | A19 | Plastic | Frosted | 6W | 25,000 | 0.72 | __ | 12 | 00000000 | 00000 |
Cone Bulb—Medium (Standard Household) Base (1 1/16" Dia.) | ||||||||||||||
120V AC | ||||||||||||||
40W | Warm (2,700K) | 300 | LED | Dimmable | B11 | Glass | Clear | 3.3W | 15,000 | 0.40 | __ | 2 | 0000000 | 0000 |
40W | Warm (2,700K) | 300 | LED | Dimmable | B11 | Glass | Clear | 3.3W | 15,000 | 0.40 | __ | 12 | 0000000 | 00000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | B11 | Plastic | Frosted | 5W | 25,000 | 0.60 | CA | 1 | 0000000 | 0000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | B11 | Plastic | Frosted | 5W | 25,000 | 0.60 | CA | 12 | 0000000 | 00000 |
Cone Bulb—Candelabra Base (1/2" Dia.) | ||||||||||||||
120V AC | ||||||||||||||
40W | Warm (2,700K) | 300 | LED | Dimmable | B10 | Glass | Clear | 3.3W | 15,000 | 0.40 | __ | 2 | 0000000 | 0000 |
40W | Warm (2,700K) | 300 | LED | Dimmable | B10 | Glass | Clear | 3.3W | 15,000 | 0.40 | __ | 12 | 0000000 | 00000 |
40W | Cool (5,000K) | 300 | LED | Dimmable | B11 | Glass | Frosted | 3.3W | 15,000 | 0.40 | __ | 2 | 0000000 | 0000 |
40W | Cool (5,000K) | 300 | LED | Dimmable | B11 | Glass | Frosted | 3.3W | 15,000 | 0.40 | __ | 12 | 0000000 | 00000 |
Globe Bulb—Medium (Standard Household) Base (1 1/16" Dia.) | ||||||||||||||
120V AC | ||||||||||||||
40W | Warm (2,700K) | 350 | LED | Dimmable | G25 | Glass | Clear | 3.8W | 15,000 | 0.46 | __ | 1 | 0000000 | 0000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | G25 | Glass | Clear | 3.8W | 15,000 | 0.46 | __ | 12 | 0000000 | 00000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | G25 | Glass | Frosted | 3.8W | 15,000 | 0.46 | __ | 1 | 00000000 | 0000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | G25 | Glass | Frosted | 3.8W | 15,000 | 0.46 | __ | 12 | 00000000 | 00000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | G40 | Glass | Clear | 4W | 15,000 | 0.48 | __ | 1 | 0000000 | 00000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | G40 | Glass | Frosted | 4.5W | 15,000 | 0.48 | __ | 1 | 0000000 | 00000 |
40W | Cool (5,000K) | 350 | LED | Dimmable | G25 | Glass | Frosted | 3.8W | 15,000 | 0.46 | __ | 3 | 00000000 | 00000 |
40W | Cool (5,000K) | 350 | LED | Dimmable | G25 | Glass | Frosted | 3.8W | 15,000 | 0.46 | __ | 12 | 00000000 | 00000 |
Globe Bulb—Intermediate Base (11/16" Dia.) | ||||||||||||||
120V AC/120V DC | ||||||||||||||
40W | Warm (2,400K) | 435 | Incand. | Dimmable | S11 | Glass | Frosted | 40W | 525 | 4.90 | __ | 1 | 0000000 | 0000 |
Globe Bulb—Candelabra Base (1/2" Dia.) | ||||||||||||||
120V AC | ||||||||||||||
40W | Warm (2,700K) | 350 | LED | Dimmable | G16 | Glass | Clear | 3.8W | 15,000 | 0.46 | __ | 2 | 0000000 | 00000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | G16 | Glass | Clear | 3.8W | 15,000 | 0.46 | __ | 12 | 0000000 | 00000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | G16 | Plastic | Frosted | 5W | 25,000 | 0.60 | CA | 1 | 0000000 | 0000 |
40W | Warm (2,700K) | 350 | LED | Dimmable | G16 | Plastic | Frosted | 5W | 25,000 | 0.60 | CA | 12 | 0000000 | 00000 |
Tubular Bulb—Medium (Standard Household) Base (1 1/16" Dia.) | ||||||||||||||
120V AC | ||||||||||||||
40W | Warm (2,700K) | 450 | LED | Dimmable | T10 | Glass | Clear | 5.5W | 15,000 | 0.60 | __ | 1 | 00000000 | 0000 |
40W | Warm (3,000K) | 450 | LED | Dimmable | T10 | Glass | Clear | 5.5W | 15,000 | 0.60 | __ | 1 | 00000000 | 0000 |
Tubular Bulb—Intermediate Base (11/16" Dia.) | ||||||||||||||
120V AC/120V DC | ||||||||||||||
40W | Warm (2,850K) | 365 | Incand. | Dimmable | T6 1/2 | Glass | Clear | 40W | 1,000 | 4.90 | __ | 1 | 0000000 | 0000 |
Screw-In Base Spotlight Bulbs


These bulbs produce a narrower, more concentrated beam of light than floodlight bulbs. 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 light 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.
R bulbs have wide beam angles that create broad beams of light. Their length makes them good for use in large can fixtures.
LED bulbs last longer and are more efficient than other technologies. They generate little heat, withstand vibration, and are shatterproof.
Equiv. Incand. Bulb Wattage | Light Appearance | Brightness, lumens | Beam Angle | Light Technology | Bulb Material | Color | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Pkg. Qty. | Pkg. | |
R14 Bulb—Intermediate Base (11/16" Dia.) | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC | ||||||||||||||
125W | Warm (2,700K) | 300 | 105° | LED | Glass | White | 40W | 2,500 | 0.40 | 1 3/4" | 2 3/8" | 1 | 0000000 | 00000 |
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.
Fluorescent bulbs are energy efficient, but they contain small amounts of mercury (for disposal information, visit www.epa.gov/cfl). Plastic-coated glass bulbs are shatter resistant; the coating retains glass shards if they break.
Bulbs that cannot be sold to the regions listed exceed local regulatory limits on mercury and/or do not meet local efficiency standards.
O'all Lg. | Equiv. Fluorescent Bulb Wattage | Light Appearance | Brightness, lumens | CRI | Light Setting | Bulb Material | Light Technology | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Trade Number | Cannot Be Sold To | Pkg. Qty. | Pkg. | |
T8 Bulb (1" Dia.) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
60" | 40W | Cool (4,100K) | 3,725 | 82 | Dimmable | Glass | Fluorescent | 40W | 30,000 | 4.82 | F40T8, FO40 | Canada | 6 | 0000000 | 0000000 |
60" | 40W | Cool (4,100K) | 3,725 | 82 | Dimmable | Glass | Fluorescent | 40W | 30,000 | 4.82 | F40T8, FO40 | Canada | 25 | 0000000 | 000000 |
T12 Bulb (1 1/2" Dia.) | |||||||||||||||
48" | 40W | Daylight (6,500K) | 2,325 | 90 | Dimmable | Glass | Fluorescent | 40W | 20,000 | 4.82 | F40T12 | CO, DC, HI, MA, NJ, NV, VT, NY, OR, WA | 6 | 0000000 | 00000 |
48" | 40W | Daylight (6,500K) | 2,325 | 90 | Dimmable | Glass | Fluorescent | 40W | 20,000 | 4.82 | F40T12 | CO, DC, HI, MA, NJ, NV, VT, NY, OR, WA | 30 | 0000000 | 000000 |
48" | 40W | Neutral (3,500K) | 2,550 | 88 | Dimmable | Glass | Fluorescent | 40W | 20,000 | 4.82 | F40T12 | CO, DC, HI, MA, NJ, NV, VT, NY, OR, WA | 6 | 0000000 | 00000 |
48" | 40W | Neutral (3,500K) | 2,550 | 88 | Dimmable | Glass | Fluorescent | 40W | 20,000 | 4.82 | F40T12 | CO, DC, HI, MA, NJ, NV, VT, NY, OR, WA | 30 | 0000000 | 000000 |
48" | 40W | Cool (4,100K) | 2,600 | 89 | Dimmable | Glass | Fluorescent | 40W | 20,000 | 4.82 | F40T12 | CO, DC, HI, MA, NJ, NV, VT, NY, OR, WA | 6 | 0000000 | 00000 |
48" | 40W | Cool (4,100K) | 2,600 | 89 | Dimmable | Glass | Fluorescent | 40W | 20,000 | 4.82 | F40T12 | CO, DC, HI, MA, NJ, NV, VT, NY, OR, WA | 30 | 0000000 | 000000 |
48" | 40W | Cool (4,100K) | 2,600 | 89 | Dimmable | Plastic-Coated Glass | Fluorescent | 40W | 24,000 | 4.82 | F40T12 | Canada, DC, NJ, NV, VT, NY | 6 | 0000000 | 000000 |
48" | 40W | Cool (4,100K) | 2,600 | 89 | Dimmable | Plastic-Coated Glass | Fluorescent | 40W | 24,000 | 4.82 | F40T12 | Canada, DC, NJ, NV, VT, NY | 30 | 0000000 | 000000 |
48" | 40W | Cool (5,000K) | 2,500 | 90 | Dimmable | Glass | Fluorescent | 40W | 20,000 | 4.82 | F40T12 | CO, DC, HI, MA, NJ, NV, VT, NY, OR, WA | 6 | 0000000 | 00000 |
48" | 40W | Cool (5,000K) | 2,500 | 90 | Dimmable | Glass | Fluorescent | 40W | 20,000 | 4.82 | F40T12 | CO, DC, HI, MA, NJ, NV, VT, NY, OR, WA | 30 | 0000000 | 000000 |
Single-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 light 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. To install, bypass the ballast by wiring the socket 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.) | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
96" | 59W | Neutral (3,500K) | 5,500 | 82 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 40W | 50,000 | 5.18 | 10 | 0000000 | 0000000 |
96" | 59W | Neutral (4,000K) | 5,500 | 82 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 40W | 50,000 | 4.82 | 6 | 0000000 | 000000 |
96" | 59W | Neutral (4,000K) | 5,500 | 82 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 40W | 50,000 | 4.82 | 10 | 0000000 | 000000 |
96" | 59W | Cool (5,000K) | 5,500 | 82 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 40W | 50,000 | 4.82 | 6 | 0000000 | 000000 |
96" | 59W | Cool (5,000K) | 5,500 | 82 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 40W | 50,000 | 4.82 | 10 | 0000000 | 000000 |
Recessed Double-Contact 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. To install, bypass the ballast by wiring the socket 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.) | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
96" | 59W | Cool (5,000K) | 5,500 | 82 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 40W | 50,000 | 4.82 | 6 | 0000000 | 0000000 |
96" | 59W | Cool (5,000K) | 5,500 | 82 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 40W | 50,000 | 4.82 | 10 | 0000000 | 000000 |
96" | 110W | Neutral (4,000K) | 5,500 | 82 | Not Dimmable | Plastic-Coated Glass | LED | Ballast Bypass | 40W | 50,000 | 4.82 | 10 | 0000000 | 000000 |
Circline 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. They cannot be sold to Canada because they do not meet local efficiency standards and exceed local regulatory limits on mercury (for disposal information, visit www.epa.gov/cfl).
O'all Dia. | Equiv. Fluorescent Bulb Wattage | Light Appearance | Brightness, lumens | CRI | Light Setting | Bulb Material | Light Technology | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Trade Number | Pkg. Qty. | Cannot Be Sold To | Pkg. | |
T5 Bulb (5/8" Dia.) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
11 3/4" | 40W | Neutral (3,500K) | 3,200 | 82 | Dimmable | Glass | Fluorescent | 40W | 12,000 | 4.82 | FPC40 | 1 | Canada | 0000000 | 000000 |
T9 Bulb (1 1/8" Dia.) | |||||||||||||||
16" | 40W | Cool (4,100K) | 2,500 | 60 | Dimmable | Glass | Fluorescent | 40W | 12,000 | 4.82 | FC16T9 | 1 | Canada | 0000000 | 00000 |
U-Shaped 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.
Fluorescent bulbs are energy efficient, but they contain small amounts of mercury (for disposal information, visit www.epa.gov/cfl).
Bulbs that cannot be sold to the areas listed do not meet local regulatory limits on mercury content and local energy efficiency requirements.
O'all Lg. | Base Ctr.-to-Ctr. | Equiv. Fluorescent Bulb Wattage | Light Appearance | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Trade Number | Brightness, lumens | CRI | Bulb Material | Light Technology | Cannot Be Sold To | Pkg. Qty. | Pkg. | |
T12 Bulb (1 1/2" Dia.) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
22 1/2" | 6" | 40W | Neutral (3,500K) | 40W | 18,000 | 4.82 | FB40 | 2,300 | 90 | Glass | Fluorescent | Canada, CA, CO, DC, HI, MA, NJ, NV, NY, OR, RI, VT, WA | 1 | 0000000 | 000000 |
22 1/2" | 6" | 40W | Cool (4,100K) | 40W | 18,000 | 4.82 | FB40 | 2,300 | 90 | Glass | Fluorescent | Canada, CA, CO, DC, HI, MA, NJ, NV, NY, OR, RI, VT, WA | 1 | 0000000 | 00000 |
22 1/2" | 6" | 40W | Daylight (6,500K) | 40W | 18,000 | 4.82 | FB40 | 2,250 | 90 | Glass | Fluorescent | Canada, CA, CO, DC, HI, MA, NJ, NV, NY, OR, RI, VT, WA | 1 | 0000000 | 00000 |
Socket Base Vehicle Headlamp Light Bulbs

Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
Bulb Trade Number | Voltage | Wattage | Light Appearance | Brightness, lumens | Light Technology | Light Setting | Bulb Material | Color | Rated Life, hrs. | Bulb Dia. | O'all Lg. | Bulb Shape No. | Each | ||
D | 9040 | 12V AC/12V DC | 40W | Warm (3,000K) | 600 | Halogen | Not Dimmable | Glass | Clear | 500 | 1/2" | 3 1/16" | T4 | 0000000 | 000000 |
Four-Pin Base Plug-In Compact Light Bulbs

Energy efficient and long lasting, these bulbs are often used in task lights. They’re comparable to PL, Dulux, and Biax bulbs. It takes these bulbs several seconds to reach full brightness. 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 often used in workspaces. Bulbs with a cool light 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. These bulbs cannot be sold to the listed areas because they do not meet local efficiency standards and exceed local regulatory limits on mercury (for disposal information, visit www.epa.gov/cfl).
Equiv. Fluorescent Bulb Wattage | Light Appearance | Brightness, lumens | Operating Position | Light Setting | Light Technology | Bulb Material | O'all Lg. | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Cannot Be Sold To | Each | |
2G11 Base | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
40W | Warm (3,000K) | 3,300 | Horizontal, Base Up, Base Down | Dimmable | CFL | Glass | 22 1/2" | 40W | 20,000 | 4.82 | Canada, CA, CO, OR, RI | 0000000 | 000000 |
40W | Cool (4,100K) | 3,300 | Horizontal, Base Up, Base Down | Dimmable | CFL | Glass | 22 1/2" | 40W | 20,000 | 4.82 | Canada, CA, CO, OR, RI | 0000000 | 00000 |
Blacklight Blue Light Bulbs



Detect UV-reflective materials that are invisible to the naked eye with these bulbs. They contain a blue filter that absorbs the visible light they produce while allowing long wave ultraviolet (UV-A) light to pass through. They appear black when turned off. These bulbs are not for use in bug zappers. 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 the listed areas because they exceed local regulatory limits on mercury.