Upgrade your lighting with the Luceco 18W DD LED bulb. This energy-efficient bulb consumes only 18W and provides a high luminous output of 2000 lumens. It features a cool white light with a color temperature of 4000K and boasts an extended lifespan of up to 40,000 hours. The bulb has a 4-pin GR10Q base and is designed to replace traditional 38W CFL lamps. It is compatible with electronic ballasts and does not require rewiring for electronic ballasts, making it a straight swap. These LED 2D lamps are more energy-efficient than fluorescent low energy bulbs and are a popular choice for ambient lighting in bulkheads, corridors, and stairwells. They are compact and bright, providing good all-round light. Not suitable for emergency battery packs. It is important to check with an electrician before installing to ensure compatibility, especially if you have a magnetic ballast, as this bulb is only suitable with 4-pin GR10Q base Magnetic Ballast.