Soalr power lighting system:MSL04-01B Solar panel:17V, 10W,Size:360x300x25 Rechargeable lead-acid battery:12V,7Ah LED lamp:DC 12 V,3W,2 pcs Function:Over charge/discharge protection Lighting mode:constantly Lighting duration afterfull charged:about 10 hours Certification:CE & RoHS approved. Use forhouse illumination or charging mobile phone