Busek's BHT-200-I is the iodine-compatible 200 W-class modification of the BHT-200, with material and propellant-feed changes for iodine operation. NASA's current survey lists approximately 14 mN thrust, 1,390 s specific impulse, 250 W power, and 1.2 kg mass; dedicated NASA testing reports 13.5 mN and 1,350 s at 200 W. The record remains development-stage and does not infer a separate spacecraft installation.