TM***3: Single Mode High brightness LED power: 3W Input Voltage: 6.0V - *3.8V Battery or DC adapter operated. Using SZTOPMET LED driver, above **0mA output current capability, **0% tested to ensure high reliability. Perfect zero current reverse polarity protection. Perfect rectangle brightness. Ultra long battery working time, batteries last *5% longer time comparing with the similar products in market. Shock/Recoil Proof Low Voltage Protection in 5.4V/2Cell Li-ion MTBF: >**0, **0 Hour Dimension: D*0.6**1.0mm Brass Heat Sink No Reflector No Head Gap TM***0: Multi Mode: **0% constant on / 5% constant on / Strobe Other information is the same as TM***3....