... Low Rth.-100% import from japan,high quality guarantee-Aluminum base design, heat dissipation excellent-50, 000 hours average LED life ... guarantee.7,COB design, no need use PCB, long life span.8.Whole light use 6063 100% aluminum,Excellent heat ... ThisLed mr16 bulbs use the traditional MR16 base, and Aluminum base design, heat dissipation.-Replaces traditional lighting: 60wattLed mr16 bulbs Applications ...