Probably your 3 cell mag mod....Some of ELs early FT-3Cs came with a T??J, IIRC. The one I gave to a friend was drawing 1.4 amps, and EL backed off to a safer K Vf. A TWOJ would need to be resistored at least. You might do better to ask for the brightest regulated 3.7v+ LuxIII light, since not all of us take them apart to see the emitter/star. I see you're already getting some Nuwai Q3s, are you planning to swap in TWOJ?