COMPLETE AND POWERFUL: A complete and powerful solar package with a strong daily capacity of 1.6KWh (under 4 hours of sunshine). Suitable for RV, shed, off-grid, camping, etc. (Solar panel *4, battery *1, inverter *1, charging controller *1, Bluetooth module *1 and other installed cables and accessories.) EFFICIENT ENERGY CONVERSION: Full welded 12 busbar high performance solar panel, more stable electrical connections, improve power generation performance. Up to 22.7% conversion efficiency, high light transmittance, release energy potential. 3.2mm IP67 fully sealed toughened glass panel, reinforced aluminum frame fixed, enjoy reliable solar power supply. INNOVATIVE MPPT TECHNOLOGY DRIVE: The 40A charging controller uses innovative MPPT technology with 99.5% maximum power point tracking, to increase the power generation rate by 40% compared to PWM. With Bluetooth module, you can remotely monitor the charging status, adjust the charging parameters, providing a more convenient and intelligent experience. LARGER POWER RESERVE: 12.8V,100AH lithium iron phosphate battery provides greater power reserve to support high-power equipment operation. Equipped with BMS protection and built-in charge balance, the battery life can be extended to more than ten years under ideal conditions. RELIABLE POWER INVERTER: Pure sine wave 1100W inverter, up to 2800W surge power, can cope with sudden high power demand. Soft start technology, including overtemperature, overload, short circuit, battery overvoltage and low voltage protection, to ensure the safe operation of the system. The built-in temperature-controlled fan effectively reduces heat and extends the service life of the inverter. (Good things are worth waiting for. Your order will be delivered in 4 separate packages, which will not arrive at the same time. Please be patient; they will all arrive eventually.) 400W 12V Complete Solar Panel Kit, 400W Solar Panels + 40A MPPT Charge Controller +12V 100Ah LiFePO4 + 1100W Pure Sine Wave Inverter + Bluetooth Module, for Off-Grid, RV, Campsite, Cabin