Ikan IOC-BD 4-Way Barn Door for iLED312-v2 or MB4Ikan IOC BD 4 Way Barn Door for iLED312 v2 or MB4 The 4 way barn door for the iLED312 v2 or MB4 is a strong but lightweight system. It controls light spill from the quarter x 1 LED lights and allows the professional to use and control their LEDs lights for all shooting situations. Key Features 4 Way Barn Doors Controls Light Spill Works on iLED312 V2 and MB4 Lights