Cygolite Zot 250 USB
Here's a fair assessment of lighting needs, in lumens:
200: In town with cars and street lights. It's not even marginal, it's PLENTY.
350: Unlit familiar roads or trails at speeds under 20mph.
800: Faster than 21 mph in the pitch dark on unfamiliar roads.
But to sell lights to riders who are techies and have an unhealthy fear of buying the light that doesn't get FIVE STARS with over a thousand reviews, light makers have to pack lights with features that tend to complicate use. There's no way around this. Nobody will make a light that's simply ON, LOW, HIGH, OFF.
The ZOT 250 is our first choice for commuting, in town, and in fact most uses on familiar roads. The Metro 800 (lumen) cygolite is for fast riding on twisty, unlit, mostly unfamiliar roads and trails.
Here's a phenomenon: If you've got 250 lumens and your buddies have 800 or more and you're "sharing" that light with them--like riding side-by-side--and then you're off on your own, the 250 will seem weak. It's not. Your eyes got accustomed to stadium lighting, and then when you're without it, like even looking away from the trail, your eyes can't adapt fast enough. It's better for everybody if nobody has an ultra-light. A good system is two 250s. Use one or both. Use one, and have the backup.
On full-moon nights when you're on open (not tree-covered) trails, you can get by without any lights, as long as you aren't sharing the trails with pedestrians or other riders.
Like all such lights except the German ones, it has too many modes. Oh well...it's still super.
Only 3" long (70 mm).
Modes and Run Times
-- High: 1.5 hours
-- Med: 2.5 hours
-- Low: 7 hours
-- *SteadyPulse (nightblink): 3 hours
-- DayLighting: 9 hours
-- TripleFlash: 12 hours
-- Walking: 21 hours
-- Boost (350 lumens!): 45 minutes
Charge Time 3.5 hours.
Lithium-ion battery powered, good for at least 500 charging cycles.
System Weight 60g---about 2oz.
USB to microUSB charging cord included.