Solar panel 1. Different types:Mini, Round, Small, Big 2. Monocrystalline silicon 3. Polycrystalline silicon 4. High quility Solar panel / PV panel cell Power: 20WVmp (Operating voltage): 18VVoc (open circuit voltage):21.6VImp (operating current):2.22AIsc(short circruit current):2.49A FEATURES:1,High module conversion efficiency, through superior manufacturing technology .2,Guaranteed -1% to +3% ...