Traillights AUTO – the auto is becoming a firm favourite amoung the road users. This little light has a built in light/dark indicator on the top of the body so when the sun comes out the light turns itself off, no more flat batteries because you forgot to turn it off. The Auto has different light modes and is a very compact yet powerful light for the cyclist wanting an all in one package with the built in battery. The Auto is rechargeable and features a flat line lense so is on-coming car friendly as well.. what this means is that the light doesn’t shine directly into the driver’s eyes of approaching vehicles, but has a definitive cut off line of light. The AUTO can be set at variable light strengths or flahing mode.