The all new ampp500s takes all the best features of its predecessor and improves on them and boosts the power by 100 lumens over the ampp400s.with a new more tactile on off button allowing for better feeling when using gloves. 5 lighting modes give you a wide range of power levels from daytime safety to nighttime visibility. All securely held in place with our adjustable flextighttrade bracket the ampp500s features opticubetrade lens technology providing a clear beam pattern of bright light with superior side visibility. A double click of the power button activates high mode and allows you to quickly adapt to changing ride conditions. All this wrapped up into a new tough design and durable casing the ampp500s is the perfect light for twilight or early morning rides urbans city riding or as a back up safety light for this longer endurance rides. Technologies daytimecan be used in the daytime. All weather ipx4can be used in rainy weather. Side visibilityprovides visibility from the side to increase safety. Usb type creversible usb type c connector eliminates the worry about plug orientation. Opticubeour proprietary opticubetrade lens technology maximizes brightness for greater visibility. Flextightthe flextighttrade bracket can be quickly and securely fastened to the handlebar without tools. Low battery indicatorindicates a battery level. Features bull rechargeable headlight 500 lmbull excellent side visibilitybull large power button for easy operationbull turns on high mode with double click of power buttonbull up to 60 hours of run timebull 5 light modes ndash high middle low daytime hyperconstant flashingbull light mode memorybull excellent daytime visibility in daytime hyperconstant modebull weight 106 gbull mount size 22 35 mm runtimes bull high mode 500 lumens65306 1.5hrsbull middle mode 250 lumens65306 3hrsbull low mode 100 lumens65306 8hrsbull hyperconstant mode 500 100 lumens65306 5hrsbull flashing mode 100 lumens65306 60hrsbull charging time from empty 4 hrs