Best price;fast delivery constant current/voltage led driver Warranty:3years Certificate:UL/CUL/SAA/CE/TUV Features IP 20 isolated LED DrierClass II protection against electric shock from direct and indirect contactConstant Voltage 5V 12V 24V 36VConstant Current 250ma/350ma/420ma/500ma/700ma/1050ma/1250ma/1400ma/1500ma/1600ma With Open circuit protection,short circuit, protection ,over load ...