4-Pin Base Light Bulbs | McMaster-Carr

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Manufacturer Equivalent Model Number

Bulb Base Number

Color Temperature

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Light Technology

Manufacturer Equivalent

Bulb Shape Number

Light Appearance

Overall Diameter

Bulb Trade Number

Operating Position

Wattage

Ballast Type

Equivalent Fluorescent Bulb Wattage

Bulb Material

Light Intensity Setting

Dimmable

Not Dimmable

Rated Life

Less than 10,000 hr.

10,000 hr. to 19,999 hr.

20,000 hr. to 29,999 hr.

40,000 hr. or greater

Brightness

Less than 10,000 lm

Not Rated

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

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EAR99

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Estimated Yearly Energy Cost

58 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.

About Replacing Tubular Fluorescent Light Bulbs

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 or daylight 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.

Bulbs cannot be sold to the listed areas because they do not meet local regulatory limits on mercury and/or local energy efficiency requirements.

T5 Bulb (5/8" Dia.)
O'all Dia.	Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	CRI	Light Setting	Bulb Material	Light Technology	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Bulb Trade Number	Cannot Be Sold To	Pkg. Qty.		Pkg.
8 7/8"	22W	Neutral (3,500K)	1,800	82	Dimmable	Glass	Fluorescent	22W	12,000	2.65	FPC22	Canada, CA, CO, HI, ME, MN, OR, RI	1	1614K21	000000
11 3/4"	40W	Neutral (3,500K)	3,200	82	Dimmable	Glass	Fluorescent	40W	12,000	4.82	FPC40	Canada, CA, CO, HI, ME, MN, OR, RI	1	1614K22	00000
11 3/4"	55W	Neutral (3,500K)	4,200	82	Dimmable	Glass	Fluorescent	55W	12,000	6.62	FPC55	Canada, CA, CO, HI, ME, MN, OR, RI	1	1614K23	00000
T9 Bulb (1 1/8" Dia.)
8"	22W	Daylight (6,200K)	910	79	Dimmable	Glass	Fluorescent	22W	12,000	2.65	FC8T9	CA, CO, HI, ME, MN, OR, RI, VT	1	1614K25	0000
8"	22W	Warm (3,000K)	1,150	85	Dimmable	Glass	Fluorescent	22W	12,000	2.65	FC8T9	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1614K24	0000
8"	22W	Cool (4,100K)	1,050	59	Dimmable	Glass	Fluorescent	22W	12,000	2.65	FC8T9	CA, CO, HI, ME, MN, OR, RI, VT	1	1614K14	0000
12"	32W	Daylight (6,200K)	1,570	73	Dimmable	Glass	Fluorescent	32W	12,000	3.85	FC12T9/D	CA, CO, HI, ME, MN, OR, RI, VT	1	1614K18	0000
12"	32W	Cool (4,100K)	1,800	59	Dimmable	Glass	Fluorescent	32W	12,000	3.85	FC12T9	CA, CO, HI, ME, MN, OR, RI, VT	1	1614K15	0000
16"	40W	Cool (4,100K)	2,500	60	Dimmable	Glass	Fluorescent	40W	12,000	4.82	FC16T9	CA, CO, HI, ME, MN, OR, RI, VT	1	1614K26	00000

Four-Pin Base Plug-In Compact Light Bulbs

2G7 Base

2GX7 Base

2G11 Base

Energy efficient and long lasting, these bulbs are often used in task lights. They’re comparable to PL, Dulux, and Biax bulbs. It takes these bulbs several seconds to reach full brightness. 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 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. These bulbs cannot be sold to the listed areas because they do not meet local efficiency standards and exceed local regulatory limits on mercury (for disposal information, visit www.epa.gov/cfl).

2G7 Base
Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	Operating Position	Light Setting	Light Technology	Bulb Material	O'all Lg.	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Cannot Be Sold To		Each
9W	Cool (4,100K)	580	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	5 11/16"	9W	20,000	1.08	Canada, CA, CO, HI, ME, MN, OR, RI	1528K54	00000
2GX7 Base
13W	Warm (2,700K)	800	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	6 3/16"	13W	10,000	1.57	Canada, CA, CO, HI, ME, MN, OR, RI	1528K57	0000
13W	Cool (4,100K)	800	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	6 3/16"	13W	10,000	1.57	Canada, CA, CO, HI, ME, MN, OR, RI	1528K56	0000
2G11 Base
18W	Warm (3,000K)	1,250	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	8 15/16"	18W	15,000	2.17	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K81	00000
18W	Neutral (3,500K)	1,250	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	8 15/16"	18W	15,000	2.17	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K26	00000
18W	Cool (4,100K)	1,250	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	8 15/16"	18W	15,000	2.17	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K98	00000
24W	Cool (4,100K)	1,800	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	12 11/16"	24W	15,000	2.89	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K99	00000
36W	Warm (3,000K)	2,900	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	16 7/16"	36W	15,000	4.34	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K83	00000
36W	Neutral (3,500K)	2,900	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	16 7/16"	36W	15,000	4.34	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K24	00000
36W	Cool (4,100K)	2,900	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	16 7/16"	36W	15,000	4.34	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K79	00000
40W	Warm (3,000K)	3,300	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	22 1/2"	40W	20,000	4.82	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K88	00000
40W	Cool (4,100K)	3,300	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	22 1/2"	40W	20,000	4.82	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K78	00000
50W	Neutral (3,500K)	4,000	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	22 1/2"	50W	20,000	6.02	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1528K41	00000
55W	Cool (4,100K)	4,800	Horizontal, Base Up, Base Down	Dimmable	CFL	Glass	21 1/8"	55W	12,000	6.62	Canada, CA, CO, HI, ME, MN, OR, RI	1528K42	00000

Four-Pin Wedge Base Plug-In Compact Light Bulbs

Often used in task lights, these bulbs are comparable to PL, Dulux, and Biax bulbs. 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 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.

LED bulbs last longer and are more efficient than CFL bulbs. They generate little heat, withstand vibration, and are shatterproof. LED bulbs are socket ready. They plug directly into a fixture and work with most electronic ballasts, but not all. Their bases are designed to fit multiple sockets.

CFL (compact fluorescent) bulbs are energy efficient, but take several seconds to reach full brightness. They cannot be sold to the listed areas because they do not meet local efficiency standards and exceed local regulatory limits on mercury (for disposal information, visit www.epa.gov/cfl).

G24q-1/G24q-2/G24q-3/GX24q-1/GX24q-2/GX24q-3/GX24q-4 Base

Horizontal Operating Position

Base Up and
Base Down
Operating Position

Horizontal Operating Position
Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	Light Setting	Light Technology	Bulb Material	O'all Lg.	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Pkg. Qty.		Pkg.
26W	Warm (3,000K)	900	Not Dimmable	LED	Plastic	6 3/8"	8.5W	40,000	1.02	1	1619N37	000000
26W	Warm (3,000K)	900	Not Dimmable	LED	Plastic	6 3/8"	8.5W	40,000	1.02	10	1619N77	000000
26W	Neutral (3,500K)	900	Not Dimmable	LED	Plastic	6 3/8"	8.5W	40,000	1.02	1	1619N38	00000
26W	Neutral (3,500K)	900	Not Dimmable	LED	Plastic	6 3/8"	8.5W	40,000	1.02	10	1619N78	000000
26W	Neutral (4,000K)	950	Not Dimmable	LED	Plastic	6 3/8"	8.5W	40,000	1.02	1	1619N39	00000
26W	Neutral (4,000K)	950	Not Dimmable	LED	Plastic	6 3/8"	8.5W	40,000	1.02	10	1619N79	000000
Base Up, Base Down Operating Position
26W	Warm (2,700K)	1,200	Not Dimmable	LED	Plastic	4 7/8"	16.5W	40,000	1.99	1	1619N41	00000
26W	Warm (2,700K)	1,200	Not Dimmable	LED	Plastic	4 7/8"	16.5W	40,000	1.99	10	1619N81	000000
26W	Warm (3,000K)	1,200	Not Dimmable	LED	Plastic	4 7/8"	16.5W	40,000	1.99	1	1619N42	00000
26W	Warm (3,000K)	1,200	Not Dimmable	LED	Plastic	4 7/8"	16.5W	40,000	1.99	10	1619N82	000000
26W	Neutral (3,500K)	1,200	Not Dimmable	LED	Plastic	4 7/8"	16.5W	40,000	1.99	1	1619N43	00000
26W	Neutral (3,500K)	1,200	Not Dimmable	LED	Plastic	4 7/8"	16.5W	40,000	1.99	10	1619N83	000000
26W	Neutral (4,000K)	1,300	Not Dimmable	LED	Plastic	4 7/8"	16.5W	40,000	1.99	1	1619N44	00000
26W	Neutral (4,000K)	1,300	Not Dimmable	LED	Plastic	4 7/8"	16.5W	40,000	1.99	10	1619N84	000000

G24/GX24 Base

Horizontal Operating Position

Base Up Operating Position

Horizontal Operating Position
Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	Light Setting	Light Technology	Bulb Material	O'all Lg.	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Pkg. Qty.		Pkg.
32W	Warm (3,000K)	1,350	Dimmable	LED	Plastic	6 1/2"	12W	50,000	1.45	1	1647N53	00000
32W	Neutral (3,500K)	1,400	Dimmable	LED	Plastic	6 7/16"	12W	50,000	1.45	1	1647N54	0000
32W	Neutral (4,000K)	1,450	Dimmable	LED	Plastic	6 1/2"	12W	50,000	1.45	1	1647N55	0000
Base Up Operating Position
32W	Warm (3,000K)	1,400	Dimmable	LED	Plastic	4 15/16"	12W	50,000	1.45	1	1647N57	00000
32W	Neutral (3,500K)	1,450	Dimmable	LED	Plastic	4 15/16"	12W	50,000	1.45	1	1647N58	00000
32W	Neutral (4,000K)	1,500	Dimmable	LED	Plastic	4 15/16"	12W	50,000	1.45	1	1647N59	00000

G24q-1 Base

Horizontal, Base Up, Base Down Operating Position
Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	Light Setting	Light Technology	Bulb Material	O'all Lg.	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Cannot Be Sold To	Pkg. Qty.		Pkg.
13W	Warm (2,700K)	900	Dimmable	CFL	Glass	5 3/16"	13W	12,000	1.57	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K72	000000
13W	Neutral (3,500K)	900	Dimmable	CFL	Glass	5 3/16"	13W	12,000	1.57	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K29	00000
13W	Cool (4,100K)	900	Dimmable	CFL	Glass	5 3/16"	13W	12,000	1.57	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K77	00000

G24q-2 Base

Horizontal, Base Up, Base Down Operating Position
Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	Light Setting	Light Technology	Bulb Material	O'all Lg.	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Cannot Be Sold To	Pkg. Qty.		Pkg.
18W	Warm (2,700K)	1,250	Dimmable	CFL	Glass	5 11/16"	18W	12,000	2.17	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K69	000000
18W	Neutral (3,500K)	1,250	Dimmable	CFL	Glass	5 11/16"	18W	12,000	2.17	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K28	00000
18W	Cool (4,100K)	1,250	Dimmable	CFL	Glass	5 11/16"	18W	12,000	2.17	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K76	00000

G24q-3 Base

Horizontal, Base Up, Base Down Operating Position
Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	Light Setting	Light Technology	Bulb Material	O'all Lg.	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Cannot Be Sold To	Pkg. Qty.		Pkg.
26W	Warm (2,700K)	1,800	Dimmable	CFL	Glass	6 1/2"	26W	12,000	3.13	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K67	000000
26W	Neutral (3,500K)	1,800	Dimmable	CFL	Glass	6 1/2"	26W	12,000	3.13	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K27	00000
26W	Cool (4,100K)	1,800	Dimmable	CFL	Glass	6 1/2"	26W	12,000	3.13	Canada, CA, CO, HI, ME, MN, OR, RI, VT	1	1528K68	00000

GX24q-3 Base

Horizontal, Base Up, Base Down Operating Position
Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	Light Setting	Light Technology	Bulb Material	O'all Lg.	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Cannot Be Sold To	Pkg. Qty.		Pkg.
26W	Warm (3,000K)	1,800	Dimmable	CFL	Glass	5"	26W	16,000	3.13	Canada, CA, CO, HI, ME, MN, OR, RI	1	1528K61	00000
32W	Warm (3,000K)	2,400	Dimmable	CFL	Glass	5 5/8"	32W	16,000	3.85	Canada, CA, CO, HI, ME, MN, OR, RI	1	1528K63	0000
32W	Cool (4,100K)	2,400	Dimmable	CFL	Glass	5 5/8"	32W	16,000	3.85	Canada, CA, CO, HI, ME, MN, OR, RI	1	1528K18	0000

GX24q-4 Base

Horizontal, Base Up, Base Down Operating Position
Equiv. Fluorescent Bulb Wattage	Light Appearance	Brightness, lumens	Light Setting	Light Technology	Bulb Material	O'all Lg.	Wattage	Rated Life, hrs.	Est. Yearly Energy Cost, $	Cannot Be Sold To	Pkg. Qty.		Pkg.
42W	Warm (3,000K)	3,200	Dimmable	CFL	Glass	6 1/2"	42W	16,000	5.06	Canada, CA, CO, HI, ME, MN, OR, RI	1	1528K45	00000
42W	Cool (4,100K)	3,200	Dimmable	CFL	Glass	6 1/2"	42W	16,000	5.06	Canada, CA, CO, HI, ME, MN, OR, RI	1	1528K21	0000

Ultraviolet Light Bulbs

Twin-Tube Bulb

Disinfect air, water, and surfaces with shortwave ultraviolet radiation. Ultraviolet radiation is harmful to skin and eyes; only install bulbs in fixtures that provide adequate protection. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.

T16 Twin-Tube Bulb
O'all Lg.	Wattage	Brightness	Current	Bulb Material	Color	Rated Life, hrs.	Est. Yearly Energy Cost, $	Bulb Trade Number	Wavelength Type		Each
14 7/8"	36W	Not Rated	0.43A	Glass	Clear	9,000	5.24	G36T16	UV-C	9188K16	000000

About Replacing Tubular Fluorescent Light Bulbs

Circline Tubular Light Bulbs

Four-Pin Base Plug-In Compact Light Bulbs

Four-Pin Wedge Base Plug-In Compact Light Bulbs

Ultraviolet Light Bulbs