lights, ah ! the old ever ready were fun, but I remember metal cased ones, grey mild steel with a huge black plastic ( bakolite ? )rotary switch on top ! the light was poor and the overall distance you could travel was somewhat diminished cause the extra weight you had to carry was prohibitive !Batteries used to last about 4 minutes nad parents were badgered into spending a weeks wage on new batts, no rechargables then !Dynamos were for the posh, but they cut through tyre sidewalls !I remember the first dynamo that came with a capacitance type charge discharge system whereby the light remained illuminated for a SHORT time while at rest ! Last nigt, driving through Aberdeen, i saw a cyclist , from about 3 miles away, he had a solid red rear, a flashing red rear, both bike mounted, a helmet red, and six flashing led type on his /her rucksack ,as i passed him i saw a very bright, almost pulsating, but not flashing white front !Brilliant ! ( no pun intended ! )This was on the cycle track next to a very busy A90 just above portlethan, for any who know it, its not a road i would like to use in the dark !
be safe , Scott.