Kosnic 12W Cool White LED 4 Pin DD Bulb

£19.19 £15.99
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  • 2 Year Guarantee 2 Year Guarantee
  • Energy Rating: A Energy Rating: A
  • 30,000 Hours 30,000 Hours

Key Features

The Kosnic 12W LED 4 Pin GR10Q Lamp is a retrofit replacement for a 28W fluorescent 2D equivalent, offering around 47% in energy savings.

  • A+ energy rating
  • 12W = 28W compact fluorescent
  • GR10q cap fitting
  • Cool White, 4000k
  • 30,000 hours average life expectancy
  • 3 year guarantee
  • Emergency conversion pack available to purchase separately
  • Size: L 192 x W 192mm

Product Description

The non-dimmable Kosnic 12W LED 4-Pin GR10Q Lamp is intended as a retrofit replacement for a 2D low-energy fluorescent lamp. Aside from its 47% energy advantage, this LED lamp also lasts 3 times longer than many fluorescent lamps with its 30,000 hour lifespan.

Installation Videos

If you are looking to replace an electronic ballast or a choke-style ballast with starter, we have 2 installation videos to guide you step by step.

To replace an electronic ballast watch the following video:

To replace a choke-style ballast with starter watch the following video

The Kosnic 12W LED 4 Pin GR10Q Lamp emits 940 lumens of 4000K cool white light in a 120° beam. It is equal in output to a 28W fluorescent low-energy DD bulb and has a peak luminous intensity of 320 candelas.

Other advantages of the Kosnic 12W LED 4-Pin Lamp over fluorescent equivalents include: instant full-power start, negligible UV or IR output (less likely to attract insects or cause fading), zero mercury content, reliable low-temperature performance (down to -20°C), shock-proof and vibration-proof.

When installing this Kosnic lamp into a standard fluorescent fitting with a magnetic ballast, the starter should be removed beforehand. With a high-frequency electronic fitting, the ballast needs to be completely bypassed.

The energy-efficiency and sheer longevity of the Kosnic 12W LED 4-Pin GR10Q Lamp will reduce running and maintenance costs considerably.


The dimensions of the Kosnic 12W LED 4-Pin GR10Q Lamp are:

  • Length: 192mm
  • Width: 192mm

Product Specification

More Information
Supplier Code KLED12STD/4P-W40
Brand Kosnic
Guarantee 2 Years
Length 192mm
Width/Dia 192mm
Type Light Bulb
Bulb Shape 2D & Double Ds
Energy Rating A
Dimmable Non-Dimmable
Cap Code GR10q
Cap 4 Pin
Watts 12W
Equivalent 28W
Voltage 240V
Lumens 940
Average Hours 30,000
Light Colour Cool White
Colour (K) 4000
Bulb Finish Diffused
Bulb Type LED
Product Rating 3 - 3.9

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