4.5W Light Bulbs | McMaster-Carr

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Screw-In Base Size

Medium (Standard Household)

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Equivalent Incandescent Bulb Wattage

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EAR99

Maximum Temperature

100° F to 149° F

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Rated Life

10,000 hr. to 19,999 hr.

20,000 hr. to 29,999 hr.

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Rated Life @ 3 Hours per Day

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6 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.

Bayonet Base Miniature Light Bulbs

Single-Contact Base with Globe Bulb

Miniature

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—Miniature Base (0.36" Base Dia.)
Bulb Trade Number	Voltage	Wattage	Current	Light Technology	Rated Life, hrs.	Bulb Dia.	O'all Lg.	Color	Pkg. Qty.		Pkg.
Globe Bulb
433	18V AC/18V DC	4.5W	0.25A	Incand.	Not Rated	0.57"	1.07"	Clear	10	9527T05	00000

Screw-In Base Miniature Light Bulbs

Globe

Miniature

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

Incandescent bulbs are traditional light bulbs.

Globe Bulb—Miniature Base (0.39" 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.
432	18V AC/18V DC	4.5W	44	0.25A	Incand.	Glass	Clear	Not Rated	0.57"	1.07"	G4 1/2	10	9527T049	00000

Top-Flanged Base Miniature Light Bulbs

Pointed, Krypton and Incandescent

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.

Xenon and krypton bulbs are known for generating a bright light, such as a flash in a camera. Xenon bulbs last longer than krypton bulbs, and both last longer than halogen and incandescent bulbs.

Single-Contact—Miniature Base (0.36" Dia.)
Bulb Trade Number	Voltage	Wattage	Brightness, lumens	Current	Light Technology	Bulb Material	Color	Rated Life	Bulb Dia.	O'all Lg.	Bulb Shape No.	Pkg. Qty.		Pkg.
Pointed Bulb
KPR112, PR12	6V AC/6V DC	4.5W	75	0.75A	Krypton	Glass	Clear	Not Rated	0.43"	1 1/4"	B3 1/2	10	1505K151	00000

Screw-In Base Light Bulbs

Globe

Medium (Standard Household)

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.

Globe Bulb—Medium (Standard Household) Base (1 1/16" 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
40W	Warm (2,700K)	350	LED	Dimmable	G40	Glass	Frosted	4.5W	15,000	0.48	1	1449T48	00000

Twist-and-Lock Base Floodlight Bulbs

Lock these bulbs into GU10 sockets with a twist. Often used in recessed can fixtures and track lighting, they provide a focused beam of light.

Small Pack
Equiv. Incand. Bulb Wattage	Beam Angle	Light Appearance	Light Setting	CRI	Brightness, lumens	Light Technology	Bulb Material	Wattage	Rated Life, hrs.	Bulb Dia.	O'all Lg.	Pkg. Qty.		Pkg.
PAR16 Bulb
120V AC
50W	36°	Warm (3,000K)	Dimmable	82	450	LED	Glass	4.5W	25,000	2"	2"	1	1732N127	00000
Large Pack
PAR16 Bulb
120V AC
50W	36°	Warm (3,000K)	Dimmable	82	450	LED	Glass	4.5W	25,000	2"	2"	6	1732N128	00000