Like the variety of modes and sequence: 4 solid (Overdrive-high-med-low), then 4 moving (medium flash, fast flash, daylight strobe and a continuous hi-lo-hi-lo pulse. With that many modes, it's nice that it remembers your last mode when you turn it off. It's very compact and light, can rotate on its mount if needed. I gave it only 4 stars because I haven't used it enough to judge battery life. My primary use will be to keep it on my road bike in daylight strobe anytime I'm doing day rides. Charging using its USB stick rear end (covered by a removable thick rubber piece when not charging) is different, but I do prefer it to micro-USB fidgeting. In a pinch, it can easily be used as a handheld light or during a power outage for general lighting in "low" mode, and can even stand on its tail. So far, so good!
Iï¿½ve had good results with all Lezyne products. This head lamp is no exception. Iï¿½ve used it flashing in bright sunlight, full bright in darkness. Very bright for itï¿½s size and weight. Have yet to decide how I like the direct plug in to USB vs cable. I do like that I donï¿½t have to look for a cable. They lay all over the house but sometimes all are in use. Great little lamp overall.
The light appears to work as advertised. I use the daytime mode and it is very bright. Haven't measured the battery life, but it appears to be about as advertised.
Charging the light took some adaptation. It's not easy to unhook it from the handlebars each time to charge it, so I wound up putting a USB charger on an extension cord and charging it on the bike.
I lost the rubber boot that fits over the USB connector within the first month of use. Lezyne claims there isn't a design problem and you just have to make sure it's pushed on firmly. They're sending a replacement under warranty, I'll make sure it's pushed on firmly, and hopefully it'll last.