Bike Headlight 1)-Super bright with max brightess up to 1200 lumens 2)Lost lasting with 2*3200mAh built-in batteries(5-11hours) 3)Working time:5 hours on high,7 hours on middle,11 hours on low,6 hours on flashing,6.5 hours on SOS. 4) Lightweight:162g,easy to carry and storage 5)Product Material: aluminium alloy 6)5 Modes(High/Middle/Low/Strobe/SOS) or 3 Modes(High / Low / Strobe) are availableto choose How to switch:being on off,Long press 2 seconds to change to 5 modes or 3 modes. 7)Waterproof rate: IPX5 8)5V/2A input and ourput. Charge and discharge protection: built-in overcharge and over discharge IC. Extending battery life. Bike Taillight 5 modes?Flashing 1/Flashing 2/Breathing/Strobe/SOS Material: aluminum alloy + plastic Package includes: front light,mount,rear light,taillight rubber pad,USB wire,Manual