The niterider174 lumina 950 boost provides enough light that it can be used in just about all riding conditions whether it be on the road on your favorite mountain biking trail or hand held in walk mode specifically designed to meet the needs of riders in all cycling categories the lumina 950 boost features an all new boost mode light setting simply double click the power button giving you the option to operate your light at maximum light output and utilizing a cree174 led means