Features: RV power generation, aquarium oxygen power generation system, household AC solar power system. Environment-friendly and pollution-free, it realizes the energy conversion from solar power to electric power Wide range of applications, it can be used in lots of place such as for car, small household appliances, ect. A solar panel is a device that converts solar radiation directly or indirectly into electrical energy by absorbing sunlight. Compared with ordinary batteries and rechargeable batteries, solar panels are more energy-saving and environmentally friendly. Specification: Solar panel Material: A-level polycrystalline silicon solar panel Detection Rate: IP65 Panel Size: 420*280mm /16.9*11.26in Maximum power: 20W Rated power: 10W Maximum voltage: 21V Working voltage: 18V Current: 0-1000MA The solar panels sheet can be mounted on an RV, boat, cabin, tent, car, trucks, trailers,etc.... Portable and lightweight, easy for carrying. High conversion for continuous power supply as long as there has sun. Suitable for outdoor activities, emergency, and outdoor working. Constructed by good quality material, eco-friendly, waterproof, durable and sensitive, junction box device diode. Nixie Tube Controller Current: 30A Voltage: DC 12 /24V Auto Adapted Build-in industrial micro chip. Big LCD display, adjustable parameter. PWM battery charging. Build-in short-circuit protection, open-circuit protection, reverse protection, over-load protection Dual MOS Reverse current protection, low heat production. Adjustable controlling parameter of the system. Inverter Product name: DC12V TO AC230V inverter Output waveform: modified sine wave Output power: 4000W Input DC voltage: 12V (note: the positive and negative poles cannot be reversed and will be damaged) Output AC voltage: 220V 50HZ Output AC socket specifications: universal socket Low voltage alarm: 10V DC0.5V Low voltage protection: 9V DC0.5V Overvoltage protection: 15.5V Protection function: overload, short circuit, overheat, reverse polarity, undervoltage/overvoltage Package Included: 1*Solar Panel 1*Controller 1*Inverter 2*Connecting Cable 1*English Manual (Battery not included)