4 Pin

8w T6 4 Pin Coolwhite/33 - 4000 Kelvin - 150mm Tight U-Bend Fluorescent Tube.

29W T5 620mm 4Pin Germicidal Ozone Free - GHP620T5L/4P

Circular Fluorescent Light Bulb 12w for reading light 4.75in Dia

Circular Fluorescent Light Bulb 12w for Reading Light

FPL 18w Japanese Compact Fluorescent with 4 Pins in a Square on the base 225mm

FPL 27w Japanese Compact Fluorescent with 4 Pins in a Square on the base

FPL 36w Japanese Compact Fluorescent with 4 Pins in a Square on the base

FPL 55w Japanese Compact Fluorescent with 4 Pins in a Square on the base

14w T6 4 Pin Coolwhite/33 - 4000 Kelvin - 200mm Tight U-Bend Fluorescent Tube.

18W T6 4 Pin Coolwhite/33 - 4000 Kelvin - 225mm Tight U-Bend Fluorescent Tube

25w T8 4 Pin Warmwhite/29 - 2700 Kelvin - 245mm Tight U-Bend Fluorescent Tube.

Philips 28w 4 Pin/GR10 2D Coolwhite/840 - 4000 Kelvin

Philips 38w 4 Pin/GR10 2D White/835 - 3500 Kelvin

2D Flykiller 28w 4 Pin in BL350

240v 12w 4 pin LED 2D 4000K 30000hr1350 lumens - Bell - 05673

This model is designed to fit slimline wall and ceiling fittings. It uses 80% less energy than traditional bulbs and has a rated lifespan of 8000 h...

Fly Killer 8w 4 Pins in Square Fly Zapper 8w T6 4 Pin BL368 - 900815550

Fly Killer 8w 4 Pins in Square Fly Zapper 8w T6 4 Pin BL350 - Casell Brand

Fly Killer 8w 4 Pins in Square Fly Zapper 8w T6 4 Pin BL350

Fly Killer 40w T8 Blacklight Fly Zapper BL350 Tight U-Bend Fluorescent Tube

40w T10 4 Pin BL Flykiller 255mm - FUL40T10-BL

Fly Killer 30w Fly Zapper 4 Pins in Square Tightbend 30w BL350 - Casell Brand

Fly Killer 25w FUL Tightbend 25w Fly Zapper 4 pins in Square with Shatterproof Coating

Fly Killer 25w FUL25 T8 Tight Bend 4-Pin in a square Fly Zapper Tube