Blackburn Grid 2'fer Front/Rear: super powerful LED light that can be used as a front or rear light. With a double click of the button you can go from white light to red light and vice versa. 4 Functions: you can choose if you need a high intensity light or an extensive battery life. Maximum 175 lumens for white light and maximum 55 lumens for red light. COB LED Technology for a more intense light for the same light power. The silicone strap allows you to attach this light to a variety of dumbbells, frames or other. Equipped with a removable clip in order to be attached to backpacks or your belt. Amber color perimeter band to offer further lateral visibility. Rechargeable with USB-C cable. The ignition button lights up green (100-50%), orange (50-25%) and red (25-0%) to indicate the battery status. Waterproof Resistant IP65, that is, resists jets of water (i.e. the rain) and does not make the dust penetrate inside the light. Auto-Eco function: for intermediate functions, when the battery reaches less than 25%, this function offers 2 additional hours of light. 4 functions for white light: - High Solid: maximum power 175 lumens for 2 hours - Constant Pulse: 6 hours at 100 lumens (+ 2 hours in Auto -Eco) - Fast Strobe: 7 hours at 40 lumens (+2 hours in Auto -Eco) - Eco Flash: 25 hours at 40 lumens. 4 Functions for red light: - High Solid: maximum power 55 lumens for 1.75 hours - Constant Pulse: 6 hours at 35 lumens (+ 2 hours in self -eco) - Fast Strobe: 6.5 hours at 20 lumens (+2 hours in Auto -Eco) - Eco Flash: 22 hours at 20 lumens.