MONTEER 3500S Bike Light with external battery

"Five ultra-high-powered LEDs capable of 3500 lumens of max actual output.
MJ-6116 high capacity battery pack(7.2V,5.2Ah) with 4*2600mAh 18650 Li-ion battery cells for a super long runtime.

Features at a Glance:
✔ Max Output: 3500 Lumens 1.2 hours under max brightness, up to 26 hours of max possible runtime.
✔ Max Run Time: 75 Hours
✔ Distance: 350 Meters
✔ Beam Intensity: 31000 CD
✔ Waterproof: IPX 5
✔ Drop Test: 1 Meter
✔ Universal Garmin mounting base included, compatible handle bar sizes: 31-35mm.
✔Several beam patterns and brightness modes.

Product Size: 72x42x44mm
Weight: 142g (exclude battery pack)"