I have these lights: http://www.superbrightleds.com/moreinfo/component-leds/5mmm-uv-led-30-degree-viewing-angle-380-nm-20mw/631/
I want to make battery operated strands of 20 and 10 lights.
I soldered the lights and tried to use a 9 volt battery clip with a 183 resistor but I could only...