Best in Market Rechargeable Head Torch Headlamp Light Lamp 1

Material: aluminum alloy, elastic head strap Lifespan: more than 10,000 hours Operating voltage: 3.6 ~ 4.2V Modes: low (1 large light on); Medium (2 small lights on); high (3 lights on); Strobe Battery: 2 x 18650 batteries (included)