Pack of 4 15w ES Energy Saving Light Bulb
code E0549
£ 3.99
Availability: In stock
Quick Description
4 x 15w ES Energy Saving Bulb with FREE UK DELIVERY. Energy saving bulbs use folded glass tubes filled with gas that is coated on the inside with a layer of phosphor. When electricity passes through the gas, it emits ultraviolet rays that cause the phosphor coating to glow. This is more energy efficient because most of the energy is turned into light instead of heat.
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