Purchased Topside light to be seen in traffic (day & night) and it works very well; I’m using the bright flashing mode front & rear. I’ve even had people in cars (during the day) ask me where I got mine so they could get one. With it’s bright wide beam pattern & dual light design, the bright flashing front white light & bright flashing red rear light, mounted high on my helmet, is highly visible (even at a long distance) day or night. If you’re looking for a headlight to see the road, look elsewhere as I don’t believe the wide beam pattern was designed for this; I think it’s primary use is to be seen in traffic and help you avoid being hit by cars & trucks. Using the flashing mode, I’ve never run low on battery and can go a week without charging (roughly 6 hours use)