Bests & Worsts Reviews from Amazon

I have a boneyard of bicycle tail lights strewn around my garage. I commute year round in Central Oregon, 45 minutes each way. In the winter months, when the sun comes up around 8:30 AM, and goes down by 4:15 PM, that means I'm riding in the dark, coming and going. Though I choose my route carefully, there are a couple of "tight spots" along the way where I really want to be seen. During the last year or so, a variety of truly bright tail lights have come out, visible during daylight hours from quite a distance. The Cygolite Hotshot 2-Watt USB, in my mind, is the best. Is there a noticeable difference between a 2 watt LED and a single watt? My wife, who overtakes me in her car on the way to work, says "YES!". She notes that the Cygolite is easily the brightest tail light I've ever used. What's to like? Easily detachable/attachable. Multiple modes. Very long life on a single charge, well over 24 hours even at the brightest setting. Gotta love the USB rechargeable battery: at the end of my work week, I pop the light off my bike, charge it (2-3 hours), pop it back on, good to go for at least another week. No prying covers off, no batteries to dispose of. What's less to like? If you belong to a group of night riders, you'll have to tone down: this light is obnoxiously bright even to some cars, much less to a fellow rider right behind you. The light intensity, in fairness, is very adjustable. Mode selection is easy, adjusting the intensity of the light took me a bit of practice, and cost me a bit of frustration. I've been using this light for five months. I'm loving its ease of use. I'm loving that it's so bright that cars often give me far more room than I need to feel safe. It's high daytime visibility is a real plus on my recumbent. This item is a winner that has made my half dozen other tail lights obsolete. Job well done, Cygolite.