UV light always works the best for me…..
here is a copy/paste from Ice Shanty……
I have been doing a lot of research on what lights work best for recharging glow in the dark jigs/lures. I searched this site for “uv light” and it came back with three pages of hits. I did not look through them all so this data may already be in here somewhere. Bottom line is you need to find/purchase the right wavelength of light to fully charge your glow jigs to accomplish the maximum amount of absorbed energy.
Most all the newer fishing gear that are glow in the dark have a product mixed in (rubber type jigs) or painted on called Strontium Aluminate. Before Strontium Aluminate was used they used copper-activated zinc sulfide. You can google both these and/or check out http://en.wikipedia.org/wiki/Strontium_aluminate or many other links out on the web for details.
Depending on the color of jig/spoon you need to charge will determine what the optimum light needed is to get a maximum charge. From the link above this wavelength of light needed will be in the range of 200-450nm (nanometer).
Confused yet? What this means is if a light is super bright to your eye it is most likely a poor light to use for charging glow jigs. All visible light to the human eye is in the approximate range of 400-800nm. A light in the Ultraviolet (UV) range would be a much better light to charge your glow jigs. UV has a wavelength range of about 100-400nm. Blacklight, or UV-A, is in the range of 315-400nm which is safe and the wavelength range that will work best for recharging your glow jigs.
UV light below 315nm is dangerous and is known as UV-B (sunburn) 280-315nm, UV-C (germicidal) 185-280nm, and UV-V (ozone producing) 100-185nm.
When searching for a light make sure you are buying from someone who publishes the wavelength(s) of their light source. Some flashlights actually have several different ranges of LED’s in them so not only could they recharge your jigs, but you can see very well with them also.
Higher wavelength LED’s tend to be a bit cheaper. When you start getting below 360nm the price seems to go up considerably. Also, the number of LED’s is not important. We have the need to light up the area of a quarter, not the floor of your shanty, so less than 10 LED’s is plenty. Even 1-2 LED’s will work fine in most cases as long as they are of the right wavelength.
My research tells me that the best wavelength LED to use would be between 350-390nm. If one could find a flashlight with a range of LED light from 350-410nm would not only fully recharge your jigs, but would also be a very good source of visible violet light (400-450nm). For me I usually have a bright white LED headlamp on anyway, so for me paying for a wide range wavelength flashlight would be a waste of money. I have found on the web many UV flashlights for under $15 and several around $6.
The Bird Man ©