This Enphase IQ8+ Microinverter (IQ8PLUS-72-2-US) is a top-of-the-line charger/inverter suitable for alternative energy supplies. With a voltage range of 300-399 VAC, this inverter technology is perfect for converting solar energy into usable power. The model Enphase IQ8+ has a power output of 401-450 W, making it a reliable and efficient choice for any home improvement project. The brand Enphase is known for its high-quality alternative energy products, and this microinverter is no exception. It is ideal for use with solar panels and other alternative energy sources. This item falls under the categories of Alternative Energy Chargers & Inverters, Alternative Energy Supplies, Electrical Supplies, Home Improvement, and Home & Garden. Also All of the microinverters are new and have never been used or installed. Although six stickers are missing out of the 18 because I was preparing to use them ( I needed IQ8 not 8+)they have not been connected to any system. You can still use them all and commission your system without any issues. None of the microinverters have been scanned or registered to a system. I can guarantee their condition. If you have any questions feel free to contact me.