Left work as the sun was setting and didn't need the lights until I hit the deep woods. Temps were in the low 40's, great riding weather. Saw a 5 point buck on the trail but I did loose my main light half way throuigh the ride. It's a 15W Nite rider that had the 5 D cell batteries. I've had it since 96 or 97. One of the contacts inside snapped off. When I get bored I'll see if I can fix it. My helmut light is a Princeton Corona that I just got and it works very well. I might just buy one of those for the handle bar light.