Improve the safety of your bike when riding at night with the T6 Water Resistant XML-T6 3-Mode 900-Lumen White LED Bike Light with Battery Pack Set. The white light emitter makes this bike light one of the most powerful on the market so it greatly improves visibility. You can operate the light on high low or strobe settings and a head strap is included for those times when you need to see around you when you're off of your bicycle. The light is powered by four lithium-ion batteries which are rechargeable and feature battery overcharge protection. Water-resistant because of its O ring the light is crafted out of heavy-duty aviation grade aluminum. Featuring a CREE XML-T6 white light emitter this is one of the brightest LED bike lights on the market. The machining on the aviation grade aluminum is flawless and the anodized surface treatment provides excellent scratch protection. It