This Osram 50 watt, 120 volts bulb, uses a E26 Medium screw base. It has a beam spread of narrow flood and a beam degree of 30. The maximum overall length is 3.25 inches. The diameter is 2.50 inches and the filament is CC-8. This Osram 50 watt PAR20's color temperature is 2850k and has a light output, also known as lumens of 550. The rated life on this 50 watt bulb is 2500 hours. It has a shape of PAR20, and it has a centerbeam candlepower of 1200. The lamp finish is a reflector with a family brand name of CAPSYLITE PAR20.