I bought two of the "Wonder Lights" for when I rode home about 9 rural miles at 11pm in the late 70s. After a few trips I decided they really were a wonder light, A "wonder" I didn't get run over! I wound up getting the hunting and fishing head strap lights with the big 6 volt lantern battery and mounted on homemade brackets to my bike. My commuter, a Raleigh Sprite 3 spd w/ fenders and racks must have weighed 45 lbs. I read my old magazines now and see that alot of ads thought of bike accessories as kids toys! This of course is one man's opinion. Dickey Greer West Monroe,La "where it rains every day"