Sylvania Coolfit 50mm low voltage halogen lamps have an aluminised reflector that directs the heat and light forward. This makes them very suitable for recessed downlights. Almost all heat and light is projected by the aluminum reflector to the front of the lamp, so that the luminaire remains cooler and therefore safer. Hence the name coolfit.
Wear-resistant aluminum reflector for constant light output and color temperature throughout the life of the lamp. Excellent color rendering. Immediately recognizable by the blue cement in the lamp base. The lifespan of the Sylvania Coolfit is 3x longer than the standard halogen lamps, which usually have 1000 or 2000 hours. So can replace all 12V 50mm dichroic reflector lamps. Lifespan: This coolfit lamp from Sylvania has an average lifespan of 5000 hours!