Power conversion circuit board of 150W miniature inverter battery DC12V up conversion AC220V step up transformer ?High voltage and high frequency AC output port, can be connected with tungsten bulb, heating wire and other resistive load or voltage multiplier rectifier circuit ?High voltage DC output port can be connected with switching power load, such as small electrical appliances with nominal 100-240V AC transmission, U-shaped energy-saving lamp, spiral energy-saving lamp, set-top box, mobile phone charger, DC small motor, small hand drill and other small tools Strictly prohibited for: fan, AC motor, silicon steel sheet transformer Product Parameter 1) PCB size: 66*61mm 2) Input Voltage: DC12V 3) Output Voltage: 110V/200V/220V/280V (Marked on the PCB. Can be set with jumper onboard) 4) Output Wave Form: high frequency square wave or DC(un-filtered) 5) Output Power: rated 150W, Max 200W (When higher than 100W, please use cooling fan) 6) Current with 12V interface (No-load): 250mA 7) Working Frequency: 37kHz 8) Onboard Chip: ST SG3525A or KA3525, depending on different production batches. 9) FET: RU6099R or DX3205R, depending on different production batches. Pay Attention 1,We recommend connect to "DC Output", because normal electric units are using normal rectifier. If connected to the "High Frequency AC Output", rectifier will heat up fast and damaged, diode will be destroyed. 2,This board has high frequency square wave AC output and DC output, so it can not drive inductive electric devices (such as motor, fan, resistor capacitor volt step-down units, small LED lights, etc) 3,When connected to small loads (phone chargers, DVD, etc), we recommend conect to lower voltage output, like 200V. 4,When working at high load (higher than 100W) or for long time, please use larger heatsink and fan for cooling. 5,Please do not mistake polarity. Need sufficiently big current for power supply and power cable. 6,No overload, No shorted at the output. 7,When output is high frequency and there is no load, the testing result with a multi-meter will be higher than actual. Shipping 1.If you need to buy in bulk, please contact, we will reply in 24 hours. 2.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. 3.Usually product Reaches after about 12-45 business days depending on destination. If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Refund or resend product will be offered if item still not received. 4.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We ask you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them! THANK YOU :)