If you leave the Cygolite on steady it will burn for 4.5 hours, on flash it will run for 300 hours...so how long do you ride in one night? for 300 hours? The L & M one will only burn for 4 hours on high and 8 hours on pulse...again, how long do you need it for in one night? Both of those lights are rechargable, so you plug into a USB port and charge it after every use. That doesn't seem that complicated to me. It sounds like you ride 8 to 10 hours straight at night, do you live in Alaska?