Proven reliability and constant lumen performance are a given with this 48mm Aluminium Reflector Lamp from Osram. Rated at 20 Watts it features a G4 (2 pin) cap/base and an extremely precise 8 degree beam angle perfect for directional and display applications in museums retail outlets galleries showrooms and the like. Emitting a Very Warm White (2700K) colour temperature this low voltage (12V) halogen reflector is also dimmable and lasts an average of 2000 hours.