1、Practical: This efficiently packaged solar panels can provide enough power for DIY that is practical and has good performance. 2、Polysilicon: The solar cell board is made of premium polysilicon material so that it is durable and has long service life. 3、Working Environment: This DIY solar panel work requires unobstructed outdoor environments in the sun and it is the perfect device for science projects. 4、Working Temperature: The working temperature of this solar panel charger is between ‑10℃ to +85℃ and it is also easy to use. 5、Wide Use: This solar cells are used for solar lawn lights, solar wall lights, solar handicrafts, solar toys, solar radios, solar flashlights, solar cell phone chargers, solar small water pumps, solar home or office power supplies and portable mobile power systems, etc. Item Type: Solar Panel Charger Material: Polysilicon Gross Weight: 145g/5.1oz Product Size: 16.5x16.5cm/6.5x6.5in Maximum Power: 4.5W Working Voltage: 6V Use: For solar lawn lights, solar wall lights, solar handicrafts, solar toys, solar radios, solar flashlights, solar mobile phone chargers, solar small water pumps, solar home or office power supplies and portable mobile power systems, etc. Working Conditions: Working Temperature: -10℃ to +85℃ Test Conditions Light Strength: 1000W/M2, 25℃, AM1.5, Output power error: ±5 percents 1 x Solar Panel Charger