... base, very good heat sink.2. Constant current drivers3. No noise, no flickering4. No UV or IR radiation in the beam, mercury free5,High ... japan,avoid giddy feeling,high quality guarantee.7,COB design, no need use PCB, long life span.8.Whole light ... lighting: 60wattLed mr16 bulbs Applications include:Office. Home lighting, hotel,supermarket,mall,jewelry shop- no giddy feeling sharp spotlight