When maximum efficiency and sleek design solutions are required, use the GCP 42 plug-in compact fluorescent light bulb. This GCP 42 CFL operates 26 watts and has a 4-pin, GX24q-3 base. High quality triple tubes emit beautiful halogen white 3500K color temperature. With high color rendering of 80, the GCP lamp provides 1,800 lumens and lasts up to 12,000 hours. Ideal for facilities, retail displays, hospitality, office, restaurant, and warehouse applications.