When it comes to building a business, Sunnytech started in a garage in New Jersey. As a family business, we promise to only produce and sell products that we will proudly use them in our own homes and yards. In Sunnytech, we apply a "triple bottom line" concept, which can help our company achieve a successful and sustainable business model. We think a lot of about it. How does good design benefit people, how does it benefit the planet and how does it generate profit for business? We seek to do the right thing, to do it well, to support people, planet and profit. That means we are trying to play an active role in the communities we run. Because we believe that we are an outstanding steward of our beautiful country and planet, Sunnytech’s business follows a 100% zero landfill policy. All leftover materials are recycled, including electronic products. Ideal mini power cells for science projects and other electronic applications, the compact size of the solar panel makes them suitable for a wide range of projects including creating solar walkways, lamp repairs, solar LED displays, or to work a motor in self powered models and portable toys. The solar cells can also be used to build a portable charger for small DC batteries – ideal for use when you’re camping, hunting or away from home! Designed exclusively for ease of use at home, school, lab, or workshop, this panel is perfect for your solar projects. At 1.25W, you can charge AA batteries, drive white LED,or your portable radio. Color coded wires with alligator clips make working with it easy and fun. For those of you who want to connect more than one panel together, this panel has two soldered tabs for permanent connections DIY YOUR OWN SMART MODEL Build your own powered models, solar toys, solar lights, solar displays, charging small DC batteries. It can be used for teaching purpose. Many of our customers come from school, colleague, etc. EASY USE 4 holes at for extreme corner for holding screw, at 2mm diameter. Red/black 3 feet long wire, connected as one wire.Colored alligator clips soldered in the backside HIGH QUALITY High quality epoxy resin, unique technology to make the components beautiful and strong, anti-wind and snow, increase the service life of solar panels. Color coded wires with alligator clips make working with it easy and fun. For those of you who want to connect more than one panel together, this panel has two soldered tabs for permanent connections. EDUCATION Solar panels are devices that absorb sunlight and convert solar radiation directly or indirectly into electricity through photoelectric or photochemical effects, it's perfect devices for science project. BLOCKING DIODE INSTALLED A blocking diode installed already in the backside to protect the solar panel from over-charging and current backflow. Special silicone to protect the blocking diode well to prevent the humid climates. Designed exclusively for ease of use at home, school, lab, or workshop, this panel is perfect for your solar projects. At 1.25W, you can charge AA batteries, drive white LED,or your portable radio. Color coded wires with alligator clips make working with it easy and fun. For those of you who want to connect more than one panel together, this panel has two soldered tabs for permanent connections Parameters Model Number: GP116*116-10B250 Material: Polycrystalline Silicon Number of Cells: 10 Max. power: 1.25W Max. current: 250mA Max. voltage: 5V Size: 116mm*116mm/4.57in*4.57in Weight: 50g/1.76oz Features 1.4 holes at for extreme corner for holding screw, at 2mm diameter. 2.Red/black 3 feet long wire, connected as one wire. 3.Colored alligator clips soldered in the backside 4.Blocking diode installed already in the back to protect the solar panel from over-charging and current backflow. 5.Put a plastic cover in the panel, a label stick there said "please remove protective cover" 6.Special silicone to protect the blocking diode well to prevent the humid climates. Package Content: 1*Solar Panel (alligator clips soldered in the backside) Storage Battery ----relation---Solar Panel 1.2V------------------------2.0V ~ 2.5V 2.4V------------------------3.5V ~ 4.0V 3.6V------------------------5.0V ~ 6.0V 6.0V-----------------------7.5V ~ 9.0V 12.0V---------------------15.0V ~18.0V