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HZTech Bicycle Headlight, 8400 Lumens 7 LED Bike Light, Waterproof MTB Road Bike Front Light Headlamp with 9000mAh Rechargeable Battery Pack, AC Charger for Mountain Bikes, Road Bicycle 28.99 http://amzn.to/2wByOA6 It's super bright, and the switch has 4 modes. Off, Bright, Dimmer, Strobe. It mounts to your bike easily, or anything with a pole similar to a bike handle. It doesn't seem that the battery pack goes on the back of the head strap, but rather that you put it in a pocket, or on your belt. The Velcro on the battery pack straps to anything easily. EXTREMELY BRIGHT HEADLIGHT: This bicycle headlamp used 7 CREE LEDs, which it emits ultra bright light to illuminate your way up to 500 feet away. Instantly improve your visibility and safety during the evening. 3 LIGHT MODES: The road bike headlight features a single button to selection 3 different light modes, High- Low- Flash. WATERPROOF BIKE SAFETY LIGHT: Use this durable and well-constructed light no matter what t...

https://luxolite.headlampluxolite.com/ This Light is awesome, because it's lifetime guaranteed, uses very little power, is very well made, and does everything you want it to do. It's so easily adjustable, compared to other head lamps. The waterproof battery compartment design is genius. The color choices are cool as well. As an Eagle Scout, Camper, and retired scout leader, I have to say this is an awesome product. I don't see any disadvantages. FYI: You can't turn on the white light, and the red lights at the same time. I was given this item for free, in exchange for an honest review. ✔ BOOST YOUR VISIBILITY : Strongest & Brightest headlamp to enjoy outdoor sports, run or dog walk while having both hands free. Stop the frustration of juggling around a tactical lantern or portable torch while trying to hold or fix something. Safely perform any task and get more done with this worry-free head mounted flashlight. ✔ EASY TO USE : 2 separate push buttons t...