EssentialsPlus&reg;: LED Bike Light with 500 foot visibility Includes a Free Red Taillight (bundle) Our exclusive Opti-Lens technology makes this light significantly brighter than its closest competitor with the same LED bulb. Universal mounting bracket attaches securely to just about any size bicycle handlebar; no tools required Other uses include baby strollers, horse-riding, roadside emergency's, camping, etc.. Waterproof, durable & ready for all conditions! Perfect for use with recreational vehicles or while hiking, camping or fishing. Headlight uses three AAA Alkaline batteries. Money back guarantee. Shop with confidence with Amazon!