6.3V AC Light Bulbs | McMaster-Carr

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14 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 Tubular 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.
Tubular Bulb
44	6.3V AC/6.3V DC	1.6W	0.25A	Incand.	Not Rated	0.41"	1.19"	Clear	10	1505K15	00000
47	6.3V AC/6.3V DC	0.9W	0.15A	Incand.	Not Rated	0.41"	1.19"	Clear	10	1505K21	0000
755	6.3V AC/6.3V DC	0.9W	0.15A	Incand.	Not Rated	0.41"	1.19"	Clear	10	1505K81	0000
1810	6.3V AC/6.3V DC	2.5W	0.4A	Incand.	Not Rated	0.41"	1.19"	Clear	10	9527T186	00000
1847	6.3V AC/6.3V DC	0.9W	0.15A	Incand.	Not Rated	0.41"	1.19"	Clear	10	1505K22	0000
1866	6.3V AC/6.3V DC	1.6W	0.25A	Incand.	Not Rated	0.41"	1.19"	Clear	10	1505K18	00000

Screw-In Base Miniature Light Bulbs

Tubular

Globe

Midget

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.

Tubular Bulb—Midget Base (0.23" 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.
378	6.3V AC/6.3V DC	1.3W	5	0.2A	Incand.	Glass	Clear	Not Rated	0.22"	0.72"	T1 3/4	10	9527T128	00000
Tubular Bulb—Miniature Base (0.39" Dia.)
40	6.3V AC/6.3V DC	0.9W	6	0.15A	Incand.	Glass	Clear	Not Rated	0.41"	1.19"	T3 1/4	10	1505K355	0000
46	6.3V AC/6.3V DC	1.6W	11	0.25A	Incand.	Glass	Clear	Not Rated	0.41"	1.19"	T3 1/4	10	9527T184	0000
Globe Bulb—Miniature Base (0.39" Dia.)
133	6.3V AC/6.3V DC	0.9W	4	0.15A	Incand.	Glass	Clear	Not Rated	0.44"	0.94"	G3 1/2	10	9527T015	0000
134	6.3V AC/6.3V DC	1.6W	7	0.25A	Incand.	Glass	Clear	Not Rated	0.44"	0.94"	G3 1/2	10	9527T016	0000

Bottom-Flanged Base Miniature Light Bulbs

Tubular Bulb
with Midget
Flanged Base

Midget

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.

Incandescent bulbs are traditional light bulbs.

Single-Contact—Midget Base (0.28" Dia.)
Bulb Trade Number	Voltage	Wattage	Current	Light Technology	Bulb Material	Rated Life, hrs.	Bulb Dia.	O'all Lg.	Bulb Shape No.	Color	Pkg. Qty.		Pkg.
Tubular Bulb
381	6.3V AC/6.3V DC	1.3W	0.2A	Incand.	Glass	Not Rated	0.22"	0.63"	T1 3/4	Clear	10	9527T131	000000

Index Base Miniature Light Bulbs

Side View

Tapered (front view)

Offset pins on 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.

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

Double-Contact Base (0.6" 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.
Tapered Bulb
1154	6.3V AC 6.3V DC 7V AC 7V DC	5.25W 16.57W	264 38	0.75A 2.63A	Incand.	2 Way	Glass	Clear	1,000 200	1"	2"	S8	10	9527T103	00000

Grooved Base Miniature Light Bulbs

Incandescent

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.

Single-Contact—Midget Base (0.23" 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.
Tubular Bulb
379	6.3V AC/6.3V DC	1.3W	5	0.2A	Incand.	Glass	Clear	Not Rated	0.22"	0.63"	T1 3/4	10	9527T129	00000