Specifications taillights approximately: 6.8 cm (length) * 3.8 cm (W) * 4 cm (thickness), install the straight tube clasp fit within a diameter of about 2.5 - 3.2 cm;Packaging Printing English version Blister (no Chinese logo).Introduce bike waterproof and shockproof taillights, unique highlight lighting design, within 2 the highlight LED +1 0.5WLED lights, dimmer mode the wick by set way from bottom to top, respectively 1-1-0.5 high power, light cover above circular transparent, the remaining red design, Fang Xinying. Particularly suitable for high-end bicycles and often at night cycling friends. Derived from the design of the European CE certification, quality and more reliable. High brightness, the use of special Class A lamp, before the built-in condenser crystal lampshade is so brightness increased by 40% based on the original.Help bottom invisible button control switch, another back clip (clip), can be caught in the bike, belt or shoulder or backpack, school bags and other belongings, a security warning, to protect personal safety.Flash mode:Click: The following 2LED flash 2 - above 0.5W high-power lights flash, the reincarnation high-frequency flicker;Second under: above 0.5W high-power light lit;Under: Close;