Features: 1) Battery type: 3 x AAA / 2 x AA / 3 x D / 2 x C / 2CR123A batteries (batteries non-included) 2) Burn time: runs continuously for average 3.6 hours. (LED for 1W and 3W) 3) DC-DC regulated circuit provides maximum light output throughout the entire battery life 4) O-ring sealed, water-resistant and shock-proof 5) Oxidized aluminum body with rubber covered click switches on the head or tail 6) On-off push-button. (customized colors are available) 7) Logo-up: silk-screen printing, laser-printing Our competitive edge: 1) Reasonable price 2) Short lead time (average 12 days) 3) Fast and efficient service to help keeping your business ahead 4) Customized products are available 5) With ISO14001 certificate