About Replacing Tubular Fluorescent Light Bulbs
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About Brightness
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About Light Appearance
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Bi-Pin Base Miniature Light Bulbs
These bulbs are small, but very bright, so they're often used in flashlights and optical instruments such as projectors and microscopes. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
Halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat.
Bulb Trade Number | Voltage | Wattage | Brightness, lumens | Current | Light Technology | Bulb Material | Color | Rated Life, hrs. | Bulb Dia. | O'all Lg. | Bulb Shape No. | Pkg. Qty. | Pkg. | ||
A | 778 | 6V AC/6V DC | 20W | 400 | 3.33A | Halogen | Glass | Clear | 100 | 0.37" | 1.24" | T2 3/4 | 1 | 0000000 | 00000 |
A | 782 | 12V AC/12V DC | 20W | 310 | 1.57A | Halogen | Glass | Clear | 2,000 | 0.37" | 1.24" | T2 3/4 | 1 | 0000000 | 0000 |
A | 788 | 6V AC/6V DC | 20W | 400 | 3.33A | Halogen | Glass | Clear | 100 | 0.37" | 1.24" | T2 1/4 | 1 | 0000000 | 0000 |
A | ESB, FHE, JC20 | 6V AC/6V DC | 20W | 450 | Not Rated | Halogen | Glass | Clear | 100 | 0.35" | 1 3/16" | T3 | 1 | 0000000 | 0000 |
A | JC20, Q20T3/CL/24 | 24V AC/24V DC | 20W | 280 | 0.83A | Halogen | Glass | Clear | 2,000 | 0.35" | 1.18" | T3 | 1 | 0000000 | 00000 |
Prefocus Base Miniature Light Bulbs
These bulbs are sized to fit tight spaces such as signs, instruments, indicators, and flashlights. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
Bulb Trade Number | Voltage | Wattage | Brightness, lumens | Current | Operating Position | Light Technology | Bulb Material | Color | Rated Life | Bulb Dia. | O'all Lg. | Bulb Shape No. | Each | |
Double-Contact—Candelabra Base (0.59" Dia.) | ||||||||||||||
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Tapered Bulb | ||||||||||||||
1634 | 20V AC/20V DC | 20W | 302 | 1A | Horizontal | Incand. | Glass | Clear | Not Rated | 1" | 2" | S8 | 00000000 | 00000 |
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.
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. | Each | |
Standard Bulb—Medium (Standard Household) Base (1 1/16" Dia.) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC/277V AC | |||||||||||||
125W | Warm (2,700K) | 2,000 | LED | Not Dimmable | A21 | Glass | Frosted | 20W | 25,000 | 2.41 | __ | 0000000 | 000000 |
Pkg. | |||||||||||||
Tubular Bulb—Intermediate Base (11/16" Dia.) | |||||||||||||
120V AC | |||||||||||||
20W | Warm (3,000K) | 150 | LED | Not Dimmable | T6 | Plastic | Frosted | 1.5W | 100,000 | 0.18 | 1 | 0000000 | 00000 |
120V AC/120V DC | |||||||||||||
22W | Warm (2,850K) | 165 | Incand. | Dimmable | T6 1/2 | Glass | Frosted | 20W | 2,500 | 2.65 | 1 | 0000000 | 0000 |
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 | 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.) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tubular Bulb | |||||||||||||
120V AC/120V DC | 20W | Warm (2,400K) | 125 | Incand. | T6 1/2 | Clear | 5,000 | 2.50 | 7/8" | 5.5" | 1 | 0000000 | 00000 |
120V AC/120V DC | 20W | Warm (2,850K) | 110 | Incand. | T6 1/2 | Frosted | 1,300 | 2.50 | 7/8" | 5.5" | 1 | 0000000 | 0000 |
Bi-Pin Base Floodlight Bulbs
Often used in recessed can fixtures and track lighting, these bulbs produce a focused beam of light. 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.
LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration. Plastic LED bulbs are shatterproof.
Halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat.
Bulbs that cannot be sold to the regions listed do not meet local energy efficiency requirements.
Equiv. Incand. Bulb Wattage | Light Appearance | Brightness, lumens | Beam Angle | Bulb Trade Number | Light Technology | Bulb Material | Color | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Cannot Be Sold To | Pkg. Qty. | Pkg. | |
MR11 Bulb | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
12V AC/12V DC | ||||||||||||||||
20W | Warm (2,925K) | Not Rated | 30° | FTD | Halogen | Glass | Clear | 20W | 2,000 | 2.41 | 1 3/8" | 1 3/8" | CA | 1 | 0000000 | 000000 |
MR16 Bulb | ||||||||||||||||
12V AC/12V DC | ||||||||||||||||
20W | Warm (2,700K) | 350 | 25° | __ | LED | Plastic | Clear | 5W | 25,000 | 0.60 | 2" | 1 3/4" | CA | 1 | 0000000 | 0000 |
20W | Warm (2,700K) | 350 | 25° | __ | LED | Plastic | Clear | 5W | 25,000 | 0.60 | 2" | 1 3/4" | CA | 6 | 0000000 | 00000 |
20W | Warm (3,000K) | 200 | 40° | __ | LED | Glass | Clear | 2.6W | 25,000 | 0.31 | 2" | 2" | __ | 1 | 0000000 | 0000 |
20W | Warm (3,000K) | 200 | 40° | __ | LED | Glass | Clear | 2.6W | 25,000 | 0.31 | 2" | 2" | __ | 12 | 0000000 | 00000 |
20W | Warm (3,000K) | 350 | 25° | __ | LED | Plastic | Clear | 5W | 25,000 | 0.60 | 2" | 1 3/4" | CA | 1 | 0000000 | 0000 |
20W | Warm (3,000K) | 350 | 25° | __ | LED | Plastic | Clear | 5W | 25,000 | 0.60 | 2" | 1 3/4" | CA | 6 | 0000000 | 00000 |
Bayonet Base Floodlight Bulbs
Pins on the base lock these bulbs into sockets to withstand vibration. Often used in recessed can fixtures and track lighting, they produce a focused beam of light. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh.
Voltage | Equiv. Incand. Bulb Wattage | Light Appearance | Brightness | Beam Angle | Bulb Trade Number | Light Technology | Bulb Material | Color | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Each | |
Single Contact—Small Base (0.59" Dia.) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
R12 Bulb | |||||||||||||||
13V AC/13V DC | 20W | Not Rated | Not Rated | Not Rated | 1383 | Incand. | Glass | Frosted | 19.5W | 300 | 2.50 | 1 1/2" | 2 5/8" | 0000000 | 00000 |
28V AC/28V DC | 20W | Not Rated | Not Rated | Not Rated | 1385 | Incand. | Glass | Frosted | 20W | 300 | 2.50 | 1 1/2" | 2 5/8" | 00000000 | 0000 |
Bi-Pin Base Spotlight Bulbs
These bulbs produce a narrower, more concentrated beam of light than floodlight bulbs. Bulbs with a warm light appearance have yellow tones. Those 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.
Halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat. Those with a glass lens will contain glass shards if the bulb breaks.
Bulbs that cannot be sold to the regions listed are restricted by local energy efficiency requirements.
For technical drawings and 3-D models, click on a part number.
Wattage | Light Appearance | Brightness | Beam Angle | Base No. | Bulb Trade Number | Light Technology | Bulb Material | Color | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Cannot Be Sold To | Each | |
MR11 Bulb | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
12V AC/12V DC | |||||||||||||||
20W | Warm (2,900K) | Not Rated | 12° | GZ4 | FTC | Halogen | Glass | Clear | 2,000 | 2.41 | 1 3/8" | 1 1/4" | CA | 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.
LED bulbs last longer and are more efficient than fluorescent bulbs. They generate little heat and withstand vibration. Plastic bulbs are shatterproof. Socket-ready bulbs work with most instant-start electronic ballasts, but not all. For a full list of compatible ballasts select a part number and view product detail. 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 | LED Installation Type | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Trade Number | Cannot Be Sold To | Pkg. Qty. | Pkg. | |
T8 Bulb (1" Dia.) | ||||||||||||||||
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36" | 20W | Warm (3,000K) | 1,300 | 80 | Not Dimmable | Plastic | LED | Socket Ready | 9W | 70,000 | 1.02 | __ | __ | 1 | 0000000 | 000000 |
36" | 20W | Warm (3,000K) | 1,300 | 80 | Not Dimmable | Plastic | LED | Socket Ready | 9W | 70,000 | 1.02 | __ | __ | 10 | 0000000 | 000000 |
T12 Bulb (1 1/2" Dia.) | ||||||||||||||||
24" | 20W | Cool (4,100K) | 1,200 | 59 | Dimmable | Glass | Fluorescent | __ | 20W | 9,000 | 2.41 | F20T12 | Canada | 6 | 0000000 | 00000 |
24" | 20W | Cool (4,100K) | 1,200 | 59 | Dimmable | Glass | Fluorescent | __ | 20W | 9,000 | 2.41 | F20T12 | Canada | 30 | 000000 | 000000 |
24" | 20W | Cool (4,100K) | 1,200 | 62 | Dimmable | Plastic-Coated Glass | Fluorescent | __ | 20W | 11,000 | 2.41 | F20T12 | Canada | 15 | 0000000 | 000000 |
24" | 20W | Cool (4,100K) | 1,200 | 62 | Dimmable | Plastic-Coated Glass | Fluorescent | __ | 20W | 11,000 | 2.41 | F20T12 | Canada | 30 | 0000000 | 000000 |
Bi-Pin 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 | |
JC20 | 12V AC/12V DC | 20W | Warm (2,650K) | 350 | Halogen | Not Dimmable | Glass | Clear | 1,000 | 3/8" | 1 1/4" | T3 | 00000000 | 00000 |
Bayonet Base Exit Sign Light Bulbs
Replace incandescent bulbs in exit signs with longer-lasting, energy-efficient LEDs. These bulbs are compatible with exit signs that are viewable from one or both sides. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.
Color | Equiv. Incand. Bulb Wattage | Brightness | Light Technology | Bulb Material | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Bulb Shape No. | Includes | Pkg. Qty. | Pkg. | |
Tubular Bulb—Double Contact Small Base (0.59" Dia.) | ||||||||||||||
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120V AC | ||||||||||||||
Red | 20W | Not Rated | LED | Plastic | 2.2W | 100,000 | 0.27 | 0.51" | 4.85" | T6 1/2 | Two Diffuser Panels | 1 | 0000000 | 000000 |
Screw-In Base Exit Sign Light Bulbs
Replace incandescent bulbs in exit signs with longer-lasting, energy-efficient LEDs. These bulbs are compatible with exit signs that are viewable from one or both sides. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.
Color | Equiv. Incand. Bulb Wattage | Brightness | Light Technology | Bulb Material | Wattage | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Bulb Shape No. | Includes | Pkg. Qty. | Pkg. | |
Tubular Bulb—Intermediate Base (11/16" Dia.) | ||||||||||||||
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120V AC | ||||||||||||||
Red | 20W | Not Rated | LED | Plastic | 2.2W | 100,000 | 0.27 | 0.51" | 4.85" | T6 1/2 | Two Diffuser Panels | 1 | 0000000 | 000000 |
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.
O'all Lg. | Wattage | Brightness | Bulb Material | Color | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Trade Number | Wavelength Type | Cannot Be Sold To | Each | |
T8 Bulb (1" Dia.) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
24" | 20W | Not Rated | Glass | Blue | 7,500 | 2.41 | F20T8 | UV-A | Canada | 0000000 | 000000 |