Product useage: LED vertical type switching power supply ,has always timing function , meets the standard of switch power supply certification standard of UL/CUL/ETL , Built- in LED light flashing controller has the function of overload protection ,over voltage protection ,constant voltage protection ,constant current protection and timing capabilities . Timing mode can be designed according to customer's requirements .Products are mainly used in LED lighting and LED decorative lights fields ,Such as Christmas lights, copper wire lights, laser lights, lawn lights, etc. This kind of power supply is also called American standard transformer, lamp series transformer, controller, UL power supply, ETL transformer, LED driver, adapter, etc. This type of vertical integrated power supply with Chinese invention patent, American invention patent, simple operation, good waterproof effect. According to different national safety certification, it can also be divided into GS, BS, SAA, UL, ETL,PSE and other built-in controller integrated power supply.