1; design PWM・ make sure the stability and efficiency of the power supply.2;anti blocking・ passed less than 20mv emf wave.3; the efficiency of about 80% below 25 degrees・ exotherm4; protection against over-voltage・ short circuit・ overload protection5・ the output voltage is stable power supply for lighting・ led to a long life reducing decay and led light.6; AC185-260v V Input voltage.output voltage: DC12Voutput power: 25Woutput current: 2A7; CE and RoHS certification8; work tempreture: 25 to 45 degrees.