Sunlite LED MR16 Reflector Spotlight Bulb, 7 Watts (50W Halogen Bulb EQ) 12V, 500 LM, 90 CRI, GU5.3 Bi Pin Base, Dimmable, T20 Compliant, UL & Energy Star Certified, 4000K Cool White 6 Pack California Compliant Light Bulbs Output is a bright 1150 classrooms Output is a bright 1150 lumens while only using 10 watts of electricity With a bright 5500 lumen output these instant on bulbs give off as much light as a 175 watt traditional bulb while only using 36 watts of electricity Dimmable – Emits a dimmable cool white light at 4000K These Energy Star Certified lamps provide the same output as a 50 watt bulb while only using 7 watts of energy