Requirements drive the technical parameters:
1, Current: 10W (240 mA) 20W (480mA);
2, working voltage: 36V ~ 48V;
3, power factor: power> 0.9;
4, CE safety regulations and low-voltage electromagnetic radiation safety requirements, or you can have CE certification;
5, have short circuit, open circuit, thermal protection function.
Please contact the regular manufacturers, must meet the fourth condition.