PLC G24D, G24Q, E26 & E27 Compact Fluorescent Lamp Holders
PLC G24D, G24Q, E26 & E27 Lamp Holders – Multi-Base CFL & LED Socket Solutions
Yoeruyo's PLC lamp holder range covers the four most widely specified bases for compact fluorescent and LED retrofit lamps: G24D (2-pin), G24Q (4-pin), E26 (medium screw, North American standard), and E27 (Edison screw, international standard). These sockets are used across commercial, industrial, and residential luminaire manufacturing, as well as maintenance and retrofit applications worldwide.
Key Technical Specifications
| Base Type | Pin / Thread | Compatible Lamp | Ballast Required | Rated Voltage |
|---|---|---|---|---|
| G24D | 2-pin, 24mm pitch | PLC 5W–26W (2-pin) | Magnetic or electronic | Up to 250V AC |
| G24Q | 4-pin, 24mm pitch | PLC 5W–26W (4-pin) | Electronic ballast required | Up to 250V AC |
| E26 | 26mm Edison screw | CFL, LED, incandescent | Self-ballasted (no external ballast) | Up to 250V AC |
| E27 | 27mm Edison screw | CFL, LED, incandescent | Self-ballasted (no external ballast) | Up to 250V AC |
Housing & Contact Specifications
- Housing material – thermoplastic (PA or PBT), UL94 V-0 flame retardant, rated to +130°C continuous
- Contact material – copper alloy with nickel or silver plating for low contact resistance and corrosion resistance
- Mounting options – horizontal, vertical, angled, and snap-in panel mount variants available
- Wire connection – push-in or screw terminal; lead wire options available for OEM assembly
- Compliance – CE, RoHS, UL-recognized components (select variants)
Application Scenarios
- Commercial downlights & troffers – office, retail, and hospitality ceiling fixtures using G24D/G24Q PLC lamps
- Industrial high-bay lighting – warehouse and factory luminaires with ballasted PLC sources
- Residential & hospitality – E26/E27 sockets for table lamps, floor lamps, pendant fixtures, and ceiling roses
- OEM luminaire manufacturing – production-line socket integration for fixture manufacturers across all lamp base types
- LED retrofit projects – G24D/G24Q sockets compatible with direct-fit LED PLC retrofit lamps (ballast bypass may apply)
- Emergency & exit lighting – PLC-based emergency luminaires and exit sign fixtures
Why Choose Yoeruyo PLC Lamp Holders
- ✅ Multi-base range – G24D, G24Q, E26, and E27 from a single supplier simplifies procurement for multi-product luminaire lines
- ✅ High-temperature rated – thermoplastic housing withstands continuous lamp operating temperatures up to +130°C
- ✅ Secure contact retention – positive-grip pin contacts and threaded shell contacts prevent lamp loosening under vibration
- ✅ Bulk & OEM supply – flexible MOQ and tiered pricing for luminaire manufacturers, electrical distributors, and contractors
- ✅ CE & RoHS compliant – meets EU Low Voltage Directive and RoHS requirements for lighting components
Buying Guide – Selecting the Right Base Type
- G24D vs G24Q – G24D (2-pin) works with magnetic or electronic ballasts; G24Q (4-pin) requires an electronic ballast for correct operation. They share the same 24mm pin pitch but are not interchangeable.
- E26 vs E27 – E26 (26mm) is the North American standard; E27 (27mm) is the international/European standard. The 1mm difference means they are not safely interchangeable — confirm your market's standard before ordering.
- LED retrofit compatibility – G24D/G24Q LED retrofit lamps may require ballast bypass wiring. Confirm with your LED lamp supplier before specifying the socket type.
- Mounting orientation – select horizontal for ceiling downlights, vertical for wall-mount fixtures, or angled for directional luminaires.
- Wire gauge – standard connection wire is 0.5mm² to 1.0mm² (AWG 20–18); confirm terminal rating before wiring.
Frequently Asked Questions
Can I use a G24D socket with a G24Q lamp?
No. G24D (2-pin) and G24Q (4-pin) lamps are not interchangeable despite sharing the same 24mm pin pitch. The pin count and ballast requirements differ — always match the socket base type to the lamp base type.
What is the difference between E26 and E27?
E26 and E27 differ by 1mm in thread diameter. E26 is the North American standard; E27 is the European/international standard. While they can sometimes physically fit each other's sockets, mixing them is not recommended due to safety and contact reliability concerns.
Are these sockets compatible with LED retrofit lamps?
Yes, for E26 and E27 sockets with self-ballasted LED lamps — these are direct replacements. For G24D and G24Q, LED PLC retrofits may require ballast bypass. Always verify compatibility with your LED lamp datasheet.
Do you supply pre-wired lamp holders for OEM assembly?
Yes. Pre-wired lamp holders with specified lead wire length, gauge, and connector termination are available for OEM luminaire production. Contact us for custom configurations and batch pricing.
Are bulk and distributor pricing available?
Yes. Yoeruyo offers tiered pricing for orders of 100 units or more across all base types. Contact us for volume quotations, mixed-SKU pallet orders, and distributor program details.
