Smart Small Gift Lamp 300 Lumen Mini Pen Light Medical Flashlight Portable LED Torch Material: Aluminum Output Lumen: 300 Lumens Life Span: 100,000 hours Battery: 2 x AAA Battery (Not Included) Note: Use ordinary 2 x AA carbon batteries,do not use alkaline batteries and lithium batteries ! Non-professionals do not open the circuit board. Do not direct people's eyes, or may lead to blindness.