This 26W Crompton Dimmable CFL Stick Light Bulb features a G24q-3, 4-pin cap fitting and a 4000K Cool White light. It produces 1800 lumens and has a lifespan of 10,000 hours. The bulb is dimmable and energy-efficient. It measures approximately 165mm in height and 41mm in width. CFL bulbs, also known as low energy bulbs, use fluorescent tube technology to produce light, offering significant energy savings and a longer lifespan compared to conventional bulbs. This ensures lower running costs per hour.