20 W Light Bulbs | McMaster-Carr

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36 Products

About Brightness and Light Appearance

Find the right lumen level to brighten your space. Then, compare the way warm, neutral, and cool lighting affect the appearance of everyday objects.

Bi-Pin-Base Miniature Light Bulbs

Pointed

Bulb

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.

									Bulb
	Bulb Trade No.	Voltage	Wattage	Brightness	Light Technology	Rated Life	Color	Overall Lg.	Dia.	Material	Shape No.	Pkg. Qty.		Pkg.
G4 Base







				Pointed Bulb

				20T3/CL/24V	24V AC/24V DC	20 W	260 lm	Halogen	2,000 hr.	Clear	1 1/4"	0.38"	Glass	T3	1	2288K111	000000


				778	6V AC/6V DC	20 W	400 lm	Halogen	100 hr.	Clear	1.24"	0.37"	Glass	T2 3/4	1	1997K38	0000
				782	12V AC/12V DC	20 W	310 lm	Halogen	2,000 hr.	Clear	1.24"	0.37"	Glass	T2 3/4	1	1997K36	0000
				788	6V AC/6V DC	20 W	400 lm	Halogen	100 hr.	Clear	1.24"	0.37"	Glass	T2 1/4	1	1997K31	0000
				ESB, FHE, JC20	6V AC/6V DC	20 W	450 lm	Halogen	100 hr.	Clear	1 3/16"	0.35"	Glass	T3	1	1535K45	0000

Bi-Pin-Base Floodlight and Spotlight Bulbs


MR11 Bulb Shape	MR16 Bulb Shape

Often used in display and landscape lighting, these small bulbs produce a focused beam of light. Bulbs that are 50W or higher are often used in overhead projectors and microscopes. They’re brightest at the center of their beam angle; the edges of the beam are about half as bright. The narrower the beam, the more concentrated the light.

LED—LED bulbs last longer and are more efficient than halogen bulbs. They generate little heat and withstand vibration.

Plastic Bulb—Plastic LED bulbs are shatterproof.

Selectable Light Appearance—Bulbs with a selectable light appearance have a switch that lets you match other lights in your room.

Cannot Be Sold To—Bulbs that cannot be sold to the regions listed do not meet local energy efficiency requirements.

				Light					Bulb								Small Pack			Large Pack
	Equiv. Incandescent Bulb Wattage, W	Bulb Base No.	Beam Angle	Appearance	Intensity Setting	Tech.	Brightness, lm	Bulb Trade No.	Material	Dia.	Color Rendering Index	Wattage, W	Rated Life, hr.	Overall Lg.	Features	Cannot Be Sold To	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
MR11 Bulb Shape







				12V AC/12V DC

				20	GU4	40°	Warm (3,000 K)	Dimmable	LED	210	FTD	Plastic	1 3/8"	90	2.8	25,000	1 5/8"	—	—	1	1535K62	00000	24	8849N19	0000000


				MR16 Bulb Shape







								12V AC/12V DC

								20	GU5.3	25°	Warm (2,700 K)	Dimmable	LED	350	BAB	Plastic	2"	80	5	25,000	1 3/4"	—	California	1	1732N19	0000	6	1732N21	00000


								20	GU5.3	25°	Warm (3,000 K)	Dimmable	LED	350	BAB	Plastic	2"	80	5	25,000	1 3/4"	—	California	1	1732N11	0000	6	1732N12	00000
								20	GU5.3	40°	Warm (3,000 K)	Dimmable	Halogen	230	BAB	Glass	2"	99	20	3,000	2"	—	—	3	8849N13	0000	18	8849N14	00000
								20	GU5.3	40°	Warm (3,000 K) Neutral (4,000 K) Cool (5,000 K)	Dimmable	LED	200	BAB	Glass	2"	90	2.6	25,000	1 3/4"	Selectable Light Appearance	—	3	8849N11	00000	18	8849N12	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.

					Bulb
	Color	Equiv. Incandescent Bulb Wattage, W	Brightness	Light Technology	Material	Dia.	Shape No.	Wattage, W	Rated Life, hr.	Est. Yearly Energy Cost	Overall Lg.	Includes		Each
Tubular Bulb—Double Contact Small Bayonet Base (0.59" Dia.)







				120V AC

				Red	20	Not Rated	LED	Plastic	0.51"	T6 1/2	2.2	100,000	$0.27	4.85"	Two Diffuser Panels Two Light Bulbs	1557K15	000000

Screw-In-Base Light Bulbs


Flat-Top Bulb	Tubular Bulb

Your go-to bulbs for everyday use in standard sockets.

Use the light appearance to match older bulbs in your facility.

Warm (3,000 K)—A 3,000K (warm) light appearance resembles halogen bulbs.

Plastic Bulb—Plastic bulbs are shatterproof.

		Bulb				Light
	Equivalent Incandescent Bulb Wattage	Shape No.	Material	Dia.	Color	Appearance	Intensity Setting	Tech.	Color Rendering Index	Brightness	Wattage	Rated Life	Overall Lg.	Pkg. Qty.		Pkg.
Flat-Top Bulb—Medium (Standard Household) Base (1 1/16" Dia.)







				120V AC

				20 W	—	Plastic	1 3/4"	Amber	—	Not Dimmable	LED	—	40 lm	2.4 W	100,000 hr.	3 1/2"	1	6585T52	0000000


				20 W	—	Plastic	1 3/4"	Green	—	Not Dimmable	LED	—	90 lm	2.8 W	100,000 hr.	3 1/2"	1	6585T12	000000


				Tubular Bulb—Intermediate Base (11/16" Dia.)







								120V AC

								20 W	T6	Plastic	1"	Frosted	Warm (3,000 K)	Not Dimmable	LED	Not Rated	150 lm	1.5 W	100,000 hr.	4 1/4"	1	1317T91	00000


								22 W	T6 1/2	Glass	7/8"	Frosted	Warm (2,850 K)	Dimmable	Incandescent	100	165 lm	20 W	2,500 hr.	5 1/2"	1	1611K14	0000

Blacklight Inspection Bulbs

Illuminate fluorescent dyes, particles, and residues to spot defects. These bulbs shine UV light to reveal material that isn’t visible with standard lighting.

Tubular Bi-Pin Base

Fluorescent

Blacklight

Cannot Be Sold To—Bulbs cannot be sold to Canada because they exceed local regulatory limits on mercury. Those that cannot be sold to Vermont are restricted by product regulations.

	Color	Bulb Trade No.	Bulb Base No.	Rated Life, hr.	Wavelength Type	Wavelength, nm	Cannot Be Sold To		Each
T8 Bulb Shape (1" Diameter Bulb)







	Fluorescent Blacklight

	24"	20	Glass	Blue	F20T8	G13	7,500	UV-A	365	Canada	8311K44	000000

Bayonet-Base Light Bulbs

Tubular

Bulb

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.

			Light			Bulb
	Voltage	Wattage, W	Appearance	Tech.	Brightness, lm	Shape No.	Dia.	Color	Rated Life, hr.	Est. Yearly Energy Cost	Overall Lg.	Pkg. Qty.		Pkg.
Double Contact—Small Bayonet Base (0.59" Dia.)







				Tubular Bulb

				120V AC/120V DC	20	Warm (2,400 K)	Incandescent	125	T6 1/2	7/8"	Clear	5,000	$2.50	5 1/2"	1	1611K72	00000


				120V AC/120V DC	20	Warm (2,850 K)	Incandescent	110	T6 1/2	7/8"	Frosted	1,300	$2.50	5 1/2"	1	1611K31	0000

Prefocus-Base Miniature Light Bulbs

Often used as the light source in microscopes, inspection instruments, and industrial testing equipment. A prefocus collar fixes the bulb in place for accurate beam focus. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.

										Bulb
	Bulb Trade No.	Voltage	Wattage	Brightness	Operating Position	Light Technology	Rated Life	Color	Overall Lg.	Dia.	Material	Shape No.		Each
Double Contact—P15d Candelabra Base (0.59" Dia.)







				Tapered Bulb

				1634	20V AC/20V DC	20 W	302 lm	Horizontal	Incandescent	200 hr.	Clear	2"	1"	Glass	S8	1505K259	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.

			Light
	Voltage	Equiv. Incandescent Bulb Wattage, W	Appearance	Tech.	Brightness	Beam Angle	Bulb Trade No.	Bulb Material	Color	Wattage, W	Rated Life, hr.	Est. Yearly Energy Cost	Bulb Dia.	Overall Lg.		Each
Single Contact—Small Bayonet Base (0.59" Dia.)







				R12 Bulb Shape

				13V AC/13V DC	20	Not Rated	Incandescent	Not Rated	Not Rated	1383	Glass	Frosted	19.5	300	$2.50	1 1/2"	2 5/8"	9527T09	00000


				28V AC/28V DC	20	Not Rated	Incandescent	Not Rated	Not Rated	1385	Glass	Frosted	20	300	$2.50	1 1/2"	2 5/8"	9527T091	0000

Bi-Pin-Base Vehicle Headlamp Light Bulbs

Brightness is measured in lumens; the higher the lumens, the brighter the bulb.

					Light			Bulb
Bulb Trade No.	Color	Voltage	Wattage	Brightness	Tech.	Intensity Setting	Appearance	Material	Dia.	Shape No.	Rated Life	Overall Lg.		Each







			Pointed Bulb

			JC20	Clear	12V AC/12V DC	20 W	350 lm	Halogen	Not Dimmable	Warm (2,650 K)	Glass	3/8"	T3	1,000 hr.	1 1/4"	9613T125	00000

Bi-Pin-Base Tubular Light Bulbs

T12 Bulb

Shape

Replace your fluorescent bulbs or upgrade to LED. These light bulbs are the most common tubular bulbs for fixtures inside plants, warehouses, and offices. Select a light appearance to match your existing lighting. If you’re not sure what temperature you need, choose a bulb with more than one light appearance. You can adjust the temperature with a switch.

LED—LED bulbs last longer and are more efficient than fluorescent bulbs. You can choose bulbs that work with or without a ballast—some bulbs can do both.

Fluorescent—Fluorescent bulbs contain small amounts of mercury. For disposal information, visit www.epa.gov/cfl.

Ballast Compatible LED— Ballast-compatible bulbs are a quick replacement for fluorescent bulbs, since they work with most instant-start electronic ballasts. Check if your ballast is compatible by selecting a part number and clicking product detail.

Plastic-Coated Glass Bulb—Plastic-coated glass bulbs are shatter resistant. If the glass breaks, the coating keeps shards from falling.

Cannot Be Sold To—Bulbs that cannot be sold to the listed areas do not meet local regulations for mercury content or energy efficiency.

	Brightness	Color Rendering Index	Bulb Material	Bulb Trade No.	Equiv. Fluorescent Bulb Trade No.	Wattage	Rated Life, hr.	Cannot Be Sold To	Pkg. Qty.		Pkg.
T12 Bulb Shape (1 1/2" Dia.)







	LED—Ballast Compatible (Type A)

	24"	20 W	Warm (3,000 K) Neutral (4,000 K) Cool (5,000 K) Daylight (6,500 K)	1,200 lm	80	Plastic-Coated Glass	—	F20T12	14 W	35,000	—	6	9633N19	000000


	48"	40 W	Warm (3,000 K) Neutral (4,000 K) Cool (5,000 K) Daylight (6,500 K)	1,800 lm	80	Plastic-Coated Glass	—	F40T12	20 W	35,000	—	10	9633N22	000000




			Fluorescent

			24"	20 W	Neutral (4,100 K)	1,200 lm	60	Glass	F20T12	—	20 W	10,000	—	30	1683K383	000000


			24"	20 W	Neutral (4,100 K)	1,200 lm	62	Glass	F20T12	—	20 W	10,000	—	2	1683K368	00000
			24"	20 W	Neutral (4,100 K)	1,200 lm	62	Plastic-Coated Glass	F20T12	—	20 W	11,000	California, Canada, Colorado, Hawaii, Maine, Minnesota, Oregon, Rhode Island	15	1539K48	000000

Screw-In-Base Exit Sign Light Bulbs


	Intermediate Base

					Bulb
	Color	Equiv. Incandescent Bulb Wattage, W	Brightness	Light Technology	Material	Dia.	Shape No.	Wattage, W	Rated Life, hr.	Est. Yearly Energy Cost	Overall Lg.	Includes		Each
Tubular Bulb—Intermediate Base (11/16" Dia.)







				120V AC

				Red	20	Not Rated	LED	Plastic	0.51"	T6 1/2	2.2	100,000	$0.27	4.85"	Two Diffuser Panels Two Light Bulbs	1557K35	000000

Contact-Lug-Base Floodlight and Spotlight Bulbs

Create a focused beam in displays. These bulbs are LED replacements for halogen bulbs, so they use a fraction of the energy and generate less heat. They also have museum-quality color accuracy, so colors appear as accurate and vibrant as they would in natural sunlight. The narrower the beam, the more concentrated the light. To install them, press the lugs into your socket or use the screw terminals at the base for hardwiring.

			Beam		Light					Bulb								Pkg. of 1		Pkg. of 6
	Equiv. Incandescent Bulb Wattage, W	Bulb Base No.	Pattern	Angle	Appearance	Intensity Setting	Tech.	Brightness, lm	Bulb Trade No.	Material	Dia.	Color Rendering Index	Wattage, W	Rated Life, hr.	Overall Lg.	Color	Environment		Pkg.		Pkg.
AR111 Spotlight/Floodlight Bulb







				12V DC

				100	G53	Flood	25°	Warm (3,000 K)	Dimmable	LED	1,200	552398	Plastic	4 3/8"	91	20	25,000	2 1/2"	Clear	Wet	8922N113	000000	8922N114	0000000

LED Light Bulbs for High-Intensity Discharge (HID) Lights

Style D—For Floodlight, Wall

Lights

Change out the bulbs in your high-intensity discharge (HID) light fixture to lower energy costs. These LED bulbs last longer than other HID bulbs and achieve the same brightness with fewer lumens. They’re ballast bypass bulbs, so you can install them in a socket that’s wired directly to the power source. Match the wattage of the bulb you’re replacing.

Select a light appearance to match your existing lighting. If you’re not sure what temperature you need, choose a bulb with more than one light appearance. You can adjust the temperature with a switch.

Style D—For Floodlight, Wall Lights

Style D have a rotating base, so you can aim the beam where you need it.

EX39 Base Number—Bulbs with an EX39 mogul base can also be used in E39 mogul base sockets.

	Light Appearance	Color	Voltage, V AC	Bulb Dia.	Overall Lg.	Rated Life, hr.	Certification		Each
EX39 Mogul Base (1 9/16" Dia.)







	80 CRI

	250	20 W 40 W 60 W	3,200 lm 6,500 lm 9,000 lm	Warm (3,000 K) Neutral (4,000 K) Cool (5,000 K)	Clear	120/277	3 5/8"	10 5/8"	50,000	C-UL Listed DLC Listed UL Listed	1636N81	000000