T6 1/2 Light Bulbs | McMaster-Carr

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	Base Type Base Type


Bayonet	Screw In

Wedge

	Voltage Voltage

	Bulb Shape Bulb Shape

	Tubular

	Wattage Wattage

	Color Color

	Clear		Frosted
	Red		Amber

	Light Technology Light Technology

Incandescent

LED

	Bulb Shape Number Bulb Shape Number	Show

T6 1/2

	Bulb Shape Number Bulb Shape Number	Hide

	Bulb Diameter Bulb Diameter

0.51"

0.83"

7/8"

	Screw-In Base Size Screw-In Base Size

	Intermediate

	Bayonet Base Size Bayonet Base Size

	Small

	Overall Length Overall Length

	Base Number Base Number

BA15d

E17

	Beam Spread Beam Spread

	Sphere

	Contact Style Contact Style

Double

	Bulb Material Bulb Material

Glass

Plastic

	Rated Life @ 3 Hours per Day Rated Life @ 3 Hours per Day

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Beam Angle Beam Angle

260°

	Maximum Temperature Maximum Temperature

120° to 149° F

Not Rated

	Minimum Temperature Minimum Temperature

-20° F

Not Rated

	Rated Life Rated Life

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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12 Products

About Brightness

About Light Appearance

Tubular

Wide

These bulbs are sized to fit tight spaces such as indicators and vehicle lights. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.

Krypton bulbs are known for generating a bright light, such as a flash in a camera. They last longer than incandescent bulbs.

Incandescent bulbs are traditional light bulbs.

Tubular Bulb—Wide Base (0.63" Dia.)
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.
7440LL	12V AC/12V DC	21W	440	1.75A	Incand.	Glass	Clear	Not Rated	0.83"	1.85"	T6 1/2	1	00000000	00000

Dual-Filament Wedge Base Miniature Light Bulbs

Tubular

Wide

These bulbs are sized to fit tight spaces such as indicators and vehicle lights. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.

Bulbs have two filaments, which operate at two brightness levels. The first filament illuminates a light and the second emits a brighter light when activated similar to a tail light and brake light.

Tubular Bulb—Wide Base (0.63" Dia.)
Bulb Trade Number	Voltage	Wattage	Brightness, lumens	Current	Light Technology	Light Setting	Bulb Material	Color	Rated Life, hrs.	Bulb Dia.	O'all Lg.	Bulb Shape No.	Pkg. Qty.		Pkg.
7443NA	12V AC	21W 5W	21 280	0.42A 1.75A	Incand.	2 Way	Glass	Amber	1,000 500	0.83"	1.87"	T6 1/2	1	00000000	00000

Screw-In Base Light Bulbs

Tubular

Intermediate

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.

Incandescent bulbs are traditional light bulbs. Many have been phased out due to governmental energy requirements, but some are still available for special applications.

Tubular Bulb—Intermediate Base (11/16" Dia.)
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.
120V AC
20W	Not Rated	150	Incand.	Dimmable	T6 1/2	Glass	Frosted	20W	5,000	2.50	1	0000000	00000
120V AC/120V DC
22W	Warm (2,850K)	165	Incand.	Dimmable	T6 1/2	Glass	Frosted	22W	2,500	2.65	1	0000000	0000
25W	Warm (2,600K)	185	Incand.	Dimmable	T6 1/2	Glass	Clear	25W	1,000	3.10	1	0000000	0000
40W	Warm (2,850K)	365	Incand.	Dimmable	T6 1/2	Glass	Clear	40W	1,000	4.90	1	0000000	0000

Bayonet Base Light Bulbs

Tubular

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.

Double Contact—Small Base (0.59" Dia.)
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.
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)	90	Incand.	T6 1/2	Frosted	9,800	2.50	7/8"	5.63"	1	0000000	0000
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
120V AC/120V DC	22W	Warm (2,850K)	145	Incand.	T6 1/2	Clear	1,300	2.70	7/8"	5.5"	1	0000000	0000

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.

Tubular Bulb—Double Contact Small Base (0.59" Dia.)
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.
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

Intermediate

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