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Standard 36W Long Twin Tube Compact Fluorescent 4-Pin 2G11 Plug-In Base UV-C 254nm Germicidal Bulb (PL-L36W/TUV) Warning! See Description For Impor...
View full detailsStandard 9W Twin Tube Compact Fluorescent 60V Bi-Pin G23 Plug-In Base UV-C 254nm Germicidal Bulb (TUVPL-S9W/2P) Warning! See Description For Import...
View full detailsSylvania FT55DL841ECO 55W T5 Long Twin Tube Compact Fluorescent 4100K 82 CRI 4-Pin 2G11 Plug-In Base Bulb (20592)
Sylvania FT55DL830ECO 55W T5 Long Twin Tube Compact Fluorescent 3000K 100V 82 CRI 4-Pin 2G11 Plug-In Base Bulb (20590)
Philips 347708 PL-L 50W/841/4P/RS 50W PL-L Long Twin Tube Compact Fluorescent 4100K 150V 82 CRI 4-Pin 2G11 Plug-In Base Bulb (927908508427)
Sylvania CF9DD/835/ECO 9W T4 Quad Tube Compact Fluorescent 3500K 82 CRI Bi-Pin G23-2 Plug-In Base Bulb (21123)
GE F18DBX/835/ECO 18W T4 Quad Tube Compact Fluorescent 3500K 82 CRI Bi-Pin G24D-2 Plug-In Base Bulb (97579)
GE F18DBX/827/ECO 18W T4 Quad Tube Compact Fluorescent 2700K 82 CRI Bi-Pin G24D-2 Push-In Base Bulb (97577)
Sylvania CF18DD/E/830/ECO 18W T4 Quad Tube Compact Fluorescent 3000K 82 CRI 4-Pin G24Q-2 Plug-In Base Bulb (20724)
GE F13DBX/830/ECO4P 13W T4 Quad Tube Compact Fluorescent 3000K 82 CRI 4-Pin G24Q-1 Plug-In Base Bulb (97595)
GE F32TBX/830/A/ECO 32W T4 Triple Tube Compact Fluorescent 3000K 82 CRI 4-Pin GX24Q-3 Plug-In Base Bulb (97630)
Philips 148676 PL-S 9W/827/2P/ALTO 9W PL Short Twin Tube Compact Fluorescent 2700K 60V 82 CRI Bi-Pin G23 Plug-In Base Bulb (927901882721)
Philips 146845 PL-S 13W/835/2P/ALTO 13W Short Twin Tube Compact Fluorescent 3500K 56V 82 CRI Bi-Pin GX23 Plug-In Base Bulb (927902783521)
Sunlite PLT/G24q/LED/IS/16W/40K LED Plug And Play Pl Horizontal Light Bulb 16W 42W Compact Fluorescent Replacement G24Q Base Ballast Dependent DLC ...
View full detailsHalco PL10H/850/BYP/LED ProLED 10W LED 5000K 120-277V 82 CRI G24q/GX24q/G24d/GX24d Base Bulb (81146)Caution: Risk Of Electric Shock. Never Disassem...
View full detailsSATCO/NUVO 15W PLL LED 2G11 Base 2000Lm 120-277V 3500K Type B Ballast Bypass (S9952)
SATCO/NUVO HyGrade 13W Pin-Based Compact Fluorescent 3000K 82 CRI GX23-2 Base (S8318)
Philips 359323 Pl-L 18W 835 4 Pins (927903183521)
Sunlite FUL40T8/BL Black Light Compact Fluorescent 120V 40W FUL 4-Pin (GX10Q) Plug-In Non-Dimmable (05170-SU)
Keystone 8W 2-Pin LED Horizontal 4000K Direct Drive (KT-LED82P-H-840-D-DP)
Keystone 9W 4-Pin LED Vertical 4000K Smart Drive (KT-LED94P-V-840-S-DP)
Philips 458265 PL-T 26W/835/A/4P/ALTO 26W PL Triple Tube Compact Fluorescent 3500K 82 CRI 4-Pin GX24Q-3 Plug-In Base Bulb (927910983550)
Sylvania CF13DS/E/830 13W T4 Twin Tube Compact Fluorescent 3000K 82 CRI 4-Pin 2GX7 Base Bulb (20284)
Philips 149013 PL-T 42W/830/A/4P/ALTO 42W PL Triple Tube Compact Fluorescent 3000K 124V 82 CRI 4-Pin GX24Q-4 Plug-In Base Bulb (927911483020)
Plug-in Light Bulbs
Here at Lighting Supply, we offer an incredible selection of light bulb types, with over a thousand varieties of the plug-in light bulb! Popular choices include the 2-pin and 4-pin bulbs, in a wide spectrum of technologies, dimensions, voltages, wattages and more, all by the leading brands you know and trust. You can easily search for the specifications you’re looking for using the convenient filters on the left side of the page. Filter your search based on the specs you need, and we’ll show you everything we have available.
Perhaps you’re not entirely sure what you need? No problem! Read on to learn some basic information about the plug-in light bulb. We explain their most popular applications, the letter/number codes used to identify them and more.
Remember — you can contact us anytime to get answers to any questions you may have. And if you’re in the market for bulk orders, check out our Volume Pricing Page! Let’s take a look at some fundamentals that will help you decide which plug-in light bulbs will work best for you.
And thank you for shopping Lighting Supply, where we help you keep your future bright.
Plug-In Light Bulb Basics
The 2-pin light bulb and the 4-pin light bulb are used for a variety of light fixtures that don’t accommodate bulbs with the Edison screw — the standard light bulb socket used throughout North America and elsewhere, recognized by the metal threads at the end of standard light bulbs.
Second in popularity only to the Edison screw, plug-in light bulbs are used throughout the world for a variety of commercial and residential applications. With 2-pin and 4-pin CFLs used in a variety of light fixtures, plug-in light bulbs offer a wide spectrum of applications throughout the home and commercial space.
Plug-in light bulbs are available in compact fluorescent, fluorescent, halogen and LED, with some varieties sporting a twist-lock mechanism to ensure proper connection. Due to the many varieties of CFL available, most of the codes related to the plug-in light bulb are designated by the letter T, for tubular, though several others are also used, including:
• FT (compact fluorescent tubular)
• FU (compact fluorescent U-bend)
• PL (compact fluorescent and LED plug-in)
Some of these designations may also include a lowercase q, indicating a quad-pin or 4-pin design. As with other bulb designations, the number following the letter indicates the distance between the pins in millimeters.
The 4-pin Light Bulb
The 4-pin light bulb variety is dominated by the CFL, with many variations available. Applications include commercial and residential, allowing the use of more efficient lighting over conventional incandescent bulbs. These bulbs, often in twin-tube and quad-tube designs, can be found in retail spaces, offices and schools, among many other locations. They come in a diverse range of wattages and color tones. With more and more LED varieties of the 4-pin light bulb becoming available, you may wish to consider the newer technology if you are looking to upgrade or save more energy.
The 2-pin Light Bulb
Similar in many ways to their 4-pin counterparts, 2-pin light bulbs are offered in both CFL and LED technologies. They offer many of the same applications as well, and are found mostly in the commercial space.
The Difference Between 2-Pin and 4-Pin Light Bulbs
The main difference between the 2-pin and 4-pin light bulb has to do with the ballast. 2-pin CFLs tend to use the older magnetic ballasts, while 4-pins use the newer, more efficient electronic ballasts.
The variety of different pin placements, layouts and spacing can seem like a major annoyance — why don’t they simply make more universal designs? The variety of connections available with plug-in light bulbs actually makes them safer, preventing their use in fixtures that aren’t meant to power them. So remember, if you’re having a difficult time installing a new plug-in light bulb, it may be because it isn’t meant to be used in your specific light fixture.
Feel free to double check with us, and we’ll help you make sure you have the right plug-in light bulb for the job!