Pinching plate to generate power、 drive generators provide a small lighting. Very magical and affordable baby. Brush the night to go home at night、 to the front of the unit to use it to illuminate the door、 do not panic it can not find the keyhole! Walking in dimly lit road、 there illuminate pig、 do not be afraid! Press the right hand pig platen can manually power、 full power Oh、 be careful the way until!