ALLPOWERS DIY solar panel is using solar panels to design solar powered appliance such as solar toys and solar displays, etc..Specification Of DIY Solar Panel Charger KitSize:130mm*150mmVoltage: 5VCurrent: 500mAhPower: 2.5WConversion Rate: 17%Weight: 92gStandard Configuration1. Backing: PCB2. Protective film: PEWarm Tips: the bubble on the panel will not affect its normal working, you can remove it, just like the plastic film on the phoneFeaturesHigh-efficiency encapsulated solar panel, providing enough power for DIYSolar panel kit with battery, power small motors or other loads; perfect devices for science projectPortable, compact & stylish size with solid attractive casingUV treated surface and durable weatherproof PCB board