Bulbrite EXN/GU10/SLV 50-Watt 120-Volt Halogen MR16 GU10 Base, Silver Flood Lasts an average of 3000 hours Aluminized coating prevents back spill and matches track and recessed fixtures Lensed for full UV Protection Available in a variety of wattages, beam spreads, and bases Perfect for track, recessed cans, downlights, and landscape lighting