Well, the Minewt 600 is 600 lumens I believe. This is generally for mountain biking on trails at night. Its too much for general commuting on streets. It can be handy though if you commute some rural areas with no street lights. You can dim it down to the low or medium settings. I have a similar Nightrider light the Lumina 350 and the flash setting is not on the brightest. They are great lights though.