4 Modes of light change: this outdoor night on running lights have up to 150 lumens of light and are designed in 5 different lighting modes, respectively high, medium (50%), low (30%) and red flashing for different situations, you can easily switch lighting modes with the click of a buttonUSB rechargeable: these reflective LED lights do not need batteries and can be charged through any USB interface, such as laptop, mobile charging device, etc., to provide you with an efficient and simple use experienceSafety design: these reflective usb rechargeable running lights are enough to light up yourself and the road around you while you jog at night, so that others can see you from hundreds of meters , reducing the frequency of accidents and making it easier to exercise outdoors at nightReliable and serviceable: our outdoor night running is made of quality plastic, light in weight and compact in size, can run for about 3-4 hours on a full charge, suitable for most weather and seasonsWidely applied: these reflective USB rechargeable running lights can be clipped on hats, belts, collars, pockets, backpacks, dog collars, etc., so you don't have to hold them in your hands, thus reducing the burden of running, jogging, climbing, camping, outdoor activities, practical to useColour:blackMaterial:plasticPackage Contents:2 * Outdoor Night lightOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.