Ultra-thin metal aluminum alloy shell and honeycomb heat dissipation hole design led driver Universal Input: 170-260V AC 50/60Hz; Constant Voltage Output: 12V DC.No minimum load, no led flicker, no transformer noise (no fan).Complies with CE /ROHS/UKCA safety compliance certification.This power supply is not dimmable. Powerful and compact power supply for more space-saving installation It is a fanless unit and it works very quietly. To overcome the problem of heat dissipation (compared to other similar power supplies), it is equipped with larger honeycomb holes.Built-in intelligent chipset with over-voltage, over-current, overload and short-circuit protection to ensure safety in using this power supply.Smooth and flicker-free output,good anti-interference performance and high reliability, long service life.IP20 rated.