Motor kit 7:1 (exterior) The motor kit 7:1 exterior includes a 6:1 gearwork and a waterproof tube in which the motor is placed. Motor kit 7:1 exterior This 7:1 motor kit is suitable for blinds up to 20m2 of 80-R, and up to 18m2 of 75-E, 88-E, or 96-E louvers.