Operating Instructions : Click the button on the bicycle light to switch mode.Four clicks are high / low / strobe / off in sequence. Six clicks are high / mid / low / strobe / sos / off in sequence. Holding down for 3 seconds to switch between 3 and 5 mode when it is off. Precautions : ~ Bicycle light generate heat during use is a normal phenomenon. If temperature is too high, please stop using the bicycle light till it cool down. ~ If bicycle light is not used for a long time. Please change it every three months. Do not irradiate to the eyes. Keep away from flammable and explosive objects. ~ The waterproof rate is IPX5. Do not soak the bicycle light into water. ~ Properly place the bicycle lihgt. Out of children's reach to avoid accident. Features : ~ Built-in battery,small and exquisite; ~ Use as bicycle light and flashlight; ~ Good heat dissipation; ~ Built-in overcharge and over discharge IC; ~ USB charging; ~ 360 Degree rotation holder; ~ Power capacity and charging indication; ~ 3 or 5 switch mode; Product Parameters : ~ Product Material : Aluminum alloy ~ Irradiation distance : 300-500 Meters ~ Product color : Black ~ Light color : White ~ LED color temperature : 7500K ~ Bracket : 360 Degreen rotation holder ~ Waterproof rate : IPX5 (small rain,splash water) ~ Power supple : Built-in 18650 battery ~ Charging indication : LED is red, when charging.LED is green, when fully charged. ~ Power capacity indication : When power is sufficient, LED is green. When power is insufficient, LED is red. ~ 3 or 5 switch mode ; 3 switch mode : high / low / strobe 5 switch mode: high / mid / low/ strobe / sos Package includes : ~ Bicycle light ~ 360 degreen rotation holder ~ USB wire (0.5m) ~ Instruction manual Please visit our website at http://www.ecomtb.com.my OR https://shopee.com.my/eco_mtb ** There is 1-3cm errors due to manual measurement. Please kindly understand. ** Actual product colour may slightly vary due to photographic lighting sources or your monitor settings. ** WE DO NOT DO COD ** ONLINE ONLY ** We support original products only. ** PRICE INDICATED IS ALREADY BEST PRICE, EXCLUDE COURIER