Anodised aluminium safety lights with precision cnc machined aluminium body for excellent water resistance single ultra bright led and high grade lens with 240 beam pattern and continuous and flashing modes the onoff switch is built into the lens for easy access with gloved hands in dark or cold conditions flexible strap allows tool free mounting up to 150hrs life in flashing mode and 50 hours in constant mode includes 2 x cr2032 batteries per light