[Upgrade 90 adjustable beam angle] We have upgraded this driving light. Its novel original design is an upward 45 plus a downward 45 adjustable beam angle, so that it can illuminate the ground and slopes well. It also greatly reduces glare from reflecting back to your eyes. The revolving light is adjustable, so you can satisfactorily see far enough ahead to avoid danger on the road. Since it is almost attached to your center of gravity, it will not bounce like a headlight.[Super bright running light] 90 tiltable running light for runners is brighter than most lights on the market. There are 500 lumens of powerful lumens behind the industry-leading Cree L2 LED, and 2 types are available Lighting settings: low and strong, designed for duplicating spotlights. The burning time of low light can provide 10 hours of visibility, and the burning time of strong light can provide 4 hours of visibility. The light surrounds the entire enclosure to ensure that there are no blind spots even if you move in large strides.[USB rechargeable and waterproof] This driving light has a micro USB charging cable, which can be used after each use to ensure that you are always visible when you need it. With the included micro USB cable (based on a powerful 2200mAh rechargeable battery), it takes about 5 hours to fully charge. They provide IPX-5 waterproof, West Biking can provide 3 months warranty. You dont need to worry about getting into a dark rainy day without visibility.[Lightweight and efficient] Wearing a chest lamp solves the main problem faced by runners who don't like to wear a lamp on their head, because it can be very uncomfortable and easy to slip due to sweating. Compared with this, our chest light is much lighter (only 160 grams) and will not be very noticeable when you move. Moreover, you can intuitively grasp the switch position of the chest light, but it is difficult to reflect the lighting effect of the front light only through preliminary attempts.