Our services >power factor in 1.0 >with pure copper transformer work inside >max efficiency over 92% >100% power for 1 hour >80% power for whole day >with power saver function >intelligent 3 step charge(inverter with charger) >competitive price reduce your cost of inverter >good construction warranty-1 year >professional service before and after sale >quick feedback Faq Q: how's the delivery time? A: usually it will take about 15-21 workdays for production. Q: could you offer form a or c/o? A: it totally not a problem. We can prepare relative documents to forging affairs office or other office to apply for this certificate. Q: would you accept to use our logo? A: if you have good quantity, it absolute no problem to do oem. Q: where is your market? A: our products are popular in egypt, american, and north africa and so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation. Q: does the inverter use directly? A: no. The inverter is a machine transfer dc voltage to ac voltage. It must connect a power source, like battery and solar panel, then transfer the energy to power the loading products.