ITEM NAME:3W 12V 250mA A-Class Polysilicon Solar Power Panel Battery Charger Panel #gib Store Home Promotion Hot Item Add to Fav.Portable 3W 12V A-Class Polysilicon Solar Power Battery Charging Panel. Material: A-Class Polysilicon. Made of 80 hardness high quality resin. 1 X Solar Power Panel. There may be slight scratches on the panel surface, but no influence to the performance.