Proper way to supply power to a LED

[colinbm]

Yes it is a 20mm star LED

[colinbm]

That would be an interesting UVA light source. What is the diameter of the unit?

I wonder if you took out the modual from the Convoy S2+, if you could add this unit.

yes these are 20mm star LEDs.

Not so simple Dave...these require 4x the voltage, therefore 4 batteries....

Col