Feit Electric ECOBulb BPESL11R16/GU10 11W / 50W 120V R16 CFL R16 Shape ECOBulb 11W equivalent to 50W (watt), 120V (volt) CFL GU10 twist-lock base Instant start (several seconds to full brightness) Replacement for track and recessed lighting, etc. Average bulb life 10,000 hours, 360 lumens