The interfit ex400 ti twin head flash kit contains all the lighting elements that you need to get your studio up and running including a pair of robust 400w fan cooled heads stands softboxes modelling lamps flash tubes and interfits dynamic ti trigger a radio remote system that brings lighting control to your fingertips the heads and modelling lamps can be controlled via the radio link from up to 12m away meaning that you spend less time setting up and tuning your lighting rig and mo