Type Type A Black DC12V AC220VType B Red DC12V AC220VType C Black DC12V AC110VType D Red DC12V AC110VFeatures 1 RV power generation aquarium oxygen power generation system household AC solar power system 2 Environment friendly and pollution free it realizes the energy conversion from solar power to electric power 3 Wide range of applications it can be used in lots of place such as for car small household appliances ect 4 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 Specifications Solar Panel Material A level polycrystalline silicon solar panelDetection Rate IP65Panel Size 420 280mm 16 9 11 26inMaximum power 20WRated power 10WMaximum voltage 21VWorking voltage 18VCurrent 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 ControllerCurrent 30AVoltage DC 12 24V Auto Adapted1 Build in industrial micro chip 2 Big LCD display adjustable parameter 3 PWM battery charging 4 Build in short circuit pro