When I was growing up we used to get light sticks or bracelets at the fair and the light was fun not as much for the purpose of seeing by it but getting noticed. With the onset of LEDs that take small amounts of power you can buy LED light sticks for cheap, not as cheap as a light stick but reusable.
One advantage I can see in these light sticks is I just found some in a drawer that I've had for about 15 years that I decided to try one as the liquid in it looked brownish but the metal vial inside was intact and it works fine but the lumen output is probably 5-15 lumens dim such that you have to have it within a foot to read but in dark adapted vision it would light up a small area like a bathroom pretty well. Back in the days of incan lights something of similar output would take 2C or D cells as standard AAA and AAA lights only ran for 30 minutes to an hour or two. I know these will run for 4-6 hours at least if not more and seem to store well for long periods of time.
Does anyone consider them for emergencies and other uses or have they instead opted for LED replacements?
One advantage I can see in these light sticks is I just found some in a drawer that I've had for about 15 years that I decided to try one as the liquid in it looked brownish but the metal vial inside was intact and it works fine but the lumen output is probably 5-15 lumens dim such that you have to have it within a foot to read but in dark adapted vision it would light up a small area like a bathroom pretty well. Back in the days of incan lights something of similar output would take 2C or D cells as standard AAA and AAA lights only ran for 30 minutes to an hour or two. I know these will run for 4-6 hours at least if not more and seem to store well for long periods of time.
Does anyone consider them for emergencies and other uses or have they instead opted for LED replacements?