SingFire SF-516 Cree XM-L T6 1000lm 4-Mode White Light Bicycle Headlamp - Black + Silver (4 x 18650)

Pros: This light is absurdly bright, easy to use, has a simple and versatile mounting mechanism and is more than enough to light your way on the darkest of streets. On long country roads, this light is perfect, the beam is a maybe a bit to focused, but it illuminates the road like a charm. More than enough light to ride by.

Cons: If you use the strobe setting, pedestrians will scream at you. I feel self conscious using this light in town, even on low. It's to bright for a large portion on my commute.

Other: This light isn't appropriate for all circumstances, it's to bright for a lot of commutes, but for those times when you need light, this is perfect.

Pros: You can't imagine the brightnes of this little monster! I have to use in low mode, because the cars are covering your back mirrors when I get closer to them. No overheating at all, very strong silicone ring to attach in my bike. The power button looks strong too.

Cons: not much, just details sucha as the strobe mode should be in low power, because is really strong and is like a disco flash hurting your eyes if you look straight.

Other: I would recomend this item to anyone who want to transform the darknes into a suny day.

Pros: This light is very bright, easy to use and mounts quickly and securely to any bike imaginable.

Cons: After three months of use, it's started to have some trouble; even though the battery is fully charged, the light will not turn on. This is inconvenient at best, and can be downright dangerous, if you are relying on this as your sole light.

Other: You get what you pay for. If this light were more reliable, it would be excellent. As is, it's annoying and potentially dangerous.