plus cfl's likely have less heat that normal incandescent light bulbs, so I would think you could have quite a few before you even match the heat of standard 100 watt light bulb, so i'm just not seeing how they could catch you with flir and/or electric records. high wattage hid lights, yes, cfl and led, i don't think so. i would be interested in seeing one documented case where a small personal cfl or led grow was busted with flir. i would say its impossible but i'm no expert.