The Volt 1200 is a great light. I have a mainly unlit country lane commute and do most of it on the low setting. The high setting is just for the sketchy descents, so the battery lasts me a week (although YMMV, I am in daylight on the way in). The beam is much more suited to commuting than anything else I’ve had, with a squared-off top to it, which helps prevent dazzle if you’ve aimed it down. Mount is plasticky but stays tight and easy to adjust on the fly.
Bad points IMO are the switch only cycles ‘down’ in power, so to go from Low to High you have to go through the strobe setting. Would be nice to go in both directions. The red battery warning light comes on soon after you set it to High, though I have never managed to drain it in a week. And in-box instructions say “Not for road use” which wasn’t stated on the website I bought it from, nor mentioned in any reviews I read beforehand…