21W Light Bulbs | McMaster-Carr

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	Base Type Base Type


Wedge	Bi-Pin

Bayonet

	Voltage Voltage

12V

12V AC

	Color Color

	Clear
	Frosted
	Amber

	Bulb Shape Bulb Shape


Tubular	Tapered

	Trade Number Trade Number

	Wedge Base Size Wedge Base Size

	Medium

	Wattage Wattage	Show

	Wattage Wattage

	Bulb Shape Number Bulb Shape Number

T6 1/2

	Overall Length Overall Length

	Light Technology Light Technology

Fluorescent

Incandescent

	Bulb Diameter Bulb Diameter

5/8"

0.83"

	Base Number Base Number

BA15s

BAU15s

	Beam Spread Beam Spread

	Sphere

	Bulb Material Bulb Material

Glass

	Brightness Brightness

Less than 10,000 lumens

	Beam Angle Beam Angle

260°

360°

	Bayonet Base Size Bayonet Base Size

	Small

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

DFARS Specialty Metals
COTS-Exempt

	Maximum Temperature Maximum Temperature

Not Rated

	Minimum Temperature Minimum Temperature

Not Rated

	Rated Life Rated Life

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

REACH Compliant

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8 Products

About Brightness

About Light Appearance

About Replacing Tubular Fluorescent 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.

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—Medium Base (0.63" Dia.)
Trade No.	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	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—Medium Base (0.63" Dia.)
Trade No.	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

Bayonet Base Miniature Light Bulbs

Single-Contact Base with Tapered Bulb

Small

Pins on either side of the base lock these bulbs into sockets. 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.

Incandescent bulbs are traditional light bulbs.

Single Contact—Small Base (0.59" Base Dia.)
Trade No.	Voltage	Wattage	Current	Light Technology	Rated Life, hrs.	Bulb Dia.	O'all Lg.	Color	Pkg. Qty.		Pkg.
Tapered Bulb
7506	12V	21W	1.75A	Incand.	Not Rated	1"	2.07"	Clear	10	00000000	00000
7507	12V	21W	1.75A	Incand.	Not Rated	1"	2.07"	Amber	5	00000000	0000

Bi-Pin Base Tubular Light Bulbs

T5 and T5/HO

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.

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 regions listed exceed local regulatory limits on mercury and/or do not meet local efficiency standards.

T5 Bulb (5/8" Dia.)
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, $	Trade No.	Cannot Be Sold To	Pkg. Qty.		Pkg.
34"	21W	Neutral (3,500K)	2,100	85	Dimmable	Glass	Fluorescent	21W	20,000	2.53	F21T5, FP21	Canada	6	0000000	000000
34"	21W	Neutral (3,500K)	2,100	85	Dimmable	Glass	Fluorescent	21W	20,000	2.53	F21T5, FP21	Canada	40	0000000	000000
34"	21W	Cool (4,100K)	2,100	85	Dimmable	Glass	Fluorescent	21W	20,000	2.53	F21T5, FP21	Canada	6	0000000	00000
34"	21W	Cool (4,100K)	2,100	85	Dimmable	Glass	Fluorescent	21W	20,000	2.53	F21T5, FP21	Canada	40	0000000	000000