... -High working Voltage and low current, it's Low Rth.-100% import from japan,high quality guarantee-Aluminum base design, heat dissipation ... beam, mercury free5,High CRI more than Ra 85.6,100% import from japan,avoid giddy feeling,high quality guarantee.7,COB ... use PCB, long life span.8.Whole light use 6063 100% aluminum,Excellent heat heat sink9.Use high quality reflector10.ISO9001 ...