Let Weather Ready® be the light in your preparedness plan for emergencies. You'll be ready to light an entire room with these bright white Nichia LED compact flashlights if the power goes out. Auto-On Nightlight—Comes on when the power goes down. Battery Type: Nickel Metal Hydride; Flashlights Type: Standard; Power Source(s): 1 NiMH Rechargeable (Included); Bulb Type: LED.