Our main products S-LEAD series grid-tie inverter already got CE, AS4777, AS3100 certifications. 1. Inverter efficiency reaches 96.5%2. MPPT efficiency >99.5%3. Non-fan design4. Built-in leakage current protection device5. IP65 protection6. Transformer-less design7. RS232 & RS485 communication8. Meets RoHS9. Designed for hanging with simple and easy installation