ECO-WORTHY 10 Watts 12 Volts Epoxy Solar Panel Module 12V Battery Charger Camping High efficiency solar cells. Can be used for trickle charger. Light weight and easy to carry. DIY your camper backpack. Nice looking by laminated PCB board with top PET sheet. Diode for anti-reverse charging to battery. 100% power output (The test conditions: 1Kw/m, 25, AM1.5).