... ,switching power supply. power supply,led power,ledpowersupply,ledpower,led driver,switching power supply. 20-35W Waterproof constant current & constant voltage ... Max 89%.Working temperature-----------Tc -25-50°C.•Short circuit protection --------- automatic recovery overloadOverpressure protection range1.5KV-3KVAC,1minute ... AProduct certificate-----------CE/EMC/ROHS/IP67 30W350MA,700MA,led driver