Rated power: 300W Output waveform: Modified sine wave Size: 20X11.2X5.6cm 2. Solar Panel 50W: Material: Aluminum substrate+efficient chip+PET Power: 18W/50W± 5% DC output: 12V/1.5A USB output: 5V/2.1A Gross Weight: 0.8kg Type: Mono Solar Panel Protect rate: IP65 Color: blue black Max solar input: 50V output: 12/ 24 V auto adapt Floating charge voltage: 13.6-13.8V Discharge stop voltage: 14V Discharge reconnect voltage: 10V Operating temperature: -20& 8451; to 60& 8451; Size: 420x280x2.5mm /360x330x2.5mm 3. Solar Controller: Material: PVC Voltage: 12V/24V automatic identification Rated charging current: 30A/50A Rated discharge current: 20A The highest photovoltaic voltage: 12V system25V/24V system50V USB output: 2 USB outputs, maximum 5V/2A Standby current: 10mA Working temperature: -35& 8451;~+60& 8451; Certification: CE RoHS Size: 180 * 90 * 45mm Features: * [Car Power inverter] Car power inverter with 2 USB ports and one AC outlet. The power inverter comes with free cigarette lighter and 2pcs battery clips, providing 300Watt continuous power, 4000watt peak power (Please make sure that the total rated power of the connected devices is ≤ 300W). Cigarette lighter cable can supply power for device easily. If the out put power is higher than 150W, please using the Crocodile Clips to a battery.     * [Fast Charging Dual USB ports ] One AC Outlets and support two usb charger ports(Max 4.2A) to work at same time and it can offer fast charging for Mobile phones, computers, laptop,breast pump, Nebulizer, Razors, medical rescue device, emergency equipment etc. Easily meet the power supply needs of the diverse vehicle electrical appliance and it can be as a Emergency Power Supply.