2D 28W 4-pin GR10q 840 cool white

SKU: 5507 - IN STOCK

Energy RatingRating A

Compact energy efficient lamp for use in low profile luminaires. Unique shape gives even light distribution. 10,000-hour life. 4000K Cool White.

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Product Description

Crompton 2D 28W 4-pin GR10q 840 cool white


An energy saving 28W fluorescent 2D lamp, which is commonly found in low profile luminaires such as those in corridors, stairwells or bathrooms.

This compact flourescent 28W Double D bulb emits a bright 2050 lumens of cool white 4000K light. Its long 10,000 hour life means that once the bulb is installed, it will be years before it needs replacing again with a lifespan of up to 5 years. It can be used outdoors when installed in a suitable IP65 rated light fitting.


  • 10,000 hour rated life
  • 5,000 switching cycles
  • Suitable for dimming - separate ballast/control gear required
  • 28W - 80W equivalent
  • 4-pin GR10q fitting
  • 4000K warm white colour appearance
  • 2050 lumens
  • Suitable for use in emergency luminaires.
  • Dimensions: Diameter = 195mm, Height = 200mm


Sorry no imageSKU5507
Manufacturer Part CodeCLC28CW4PIN
Sorry no imageLumens2050
Sorry no imageCap/FittingGR10q
Finish/ColourCool White
Sorry no imageColour Temperature4000k
Colour Rendering Index≥82
Sorry no imageDimmableOn Correct Gear Only
Equivalent Wattage80
Cap TypeGR10q
Sorry no imageRatingA
Sorry no imageRated Life (Hrs)10000
Shape2D / Circular
Switching Cycles5,000
Warm Up Time (0-60%)≤10 seconds
Sorry no imageVoltage240
Sorry no imageWattage28
Diameter (mm)195
Height (mm)200

Delivery & Returns

Standard Delivery

Most orders received by noon (Monday to Friday) are usually dispatched on the same day and the vast majority within 48 hours of receipt, subject to stock availability. To check the status of your order, please see the My Orders page. Orders are delivered by the most appropriate method, usually first class post or courier. Orders should generally be delivered within 2 or 3 working days of the dispatch date, but this is not guaranteed. Please note that Royal Mail post may take up to 15 working days for delivery. Until this period is over, we are unable to replace or refund orders sent by standard delivery.

If you arrange an urgent delivery, there is still no absolute guarantee that it will be delivered the next day, as, despite our best efforts, courier failure/errors and ‘acts of god’ may still occur. Therefore while every effort will be made to have your goods delivered on time, LightBulbs Direct Ltd accepts no responsibility for any costs incurred as a result of delayed delivery.

If delivery is delayed excessively, we will do our utmost to inform you as soon as possible. We are happy to give you the option of purchasing alternative items or receiving a full refund of any payments that you have made. If we are unable to deliver within 28 days of ordering, we will always give you the option of receiving a full refund of any payments made.

Delivery charges quoted are for UK mainland destinations only using our standard delivery methods. For deliveries over 1.5kg to the Scottish Highlands and Northern Ireland, off-shore destinations and express services, please contact our sales office for a quotation.

Please note that most orders weighing in excess of approximately 1.5 kg and any valuable deliveries are delivered by courier and will require a signature on delivery. Please ensure that you provide a delivery address where someone will be available between 9.00 and 17.00 Monday to Friday to accept delivery. If our couriers are unable to deliver an order due to the address being unmanned, a card will be left asking you to contact them directly to arrange re-delivery. If no contact is made within 2 days the order will be returned to us and a re-delivery charge will be levied to cover our re-delivery costs.

Please make sure that you always order your light bulbs to arrive well before you need them as costs of cherry pickers and sub contractors are always more expensive than the light bulbs themselves.


To learn more about our returns policy, please see our Guarantee.

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