ITEM NAME:1W 5.5V Solar Cell Epoxy Polycrystalline Solar Panel+Clip For Charging 3.7V B8Y9 1W 5.5V Solar Cell Epoxy Polycrystalline Solar Panel+Clip For Charging 3.7V B8Y9 Brand-new mini Solar panel The solar cells are encased and protected by a durable outer poly frame 3.polycrystalline silicon Epoxy Max work voltage: 5.5V Max work current: 0-180ma power: 1W Dimension: 95x95mm Wire: 45CM About Color: Black Material: Polysilicon How to choose solar panel: This table show the solar system configuration relationship between storage batteries and solar panels. DC Storage Battery Solar Panel 1.2V 2V ~ 2.5V 2.4V 3.5V ~ 4V 3.6V 5V ~ 6V 6V 7.5V ~ 9V 12V 15V ~ 18V Applications: SMALL HOME PROJECTS . SCIENCE PROJECTS . ELECTRONIC APPLICATIONS . CHARGING SMALL DC BATTERIES . BUILD YOUR OWN SELF