took 9v battery and broke flashlight circuit board and button off a broken flashlight.
Step 1: Solder
solder positive to + and negative to negative
Step 2: Hot Glue It All Stiff and Tight
i put hot glue all around circuit and + wire that hung i glued down an put lanyard on bottom
Step 3: Use As Light or Safety Light or Emergency.
i strapped lanyard to my cycling pack to add night ride so i know im seen i have a head light and rear red blinker but I know ill be seen with these 3 bright L.E.D. lights