RAIL LIGHT - LIGHT MOVER 220MMThis is an easy way to make a light cover twice the normal area. The motor unit for all kits is identical and comes fitted with a variable delay timer adjustable from 0. 5 60 seconds, which is achieved by way of an adjustment screw on the front of the motor unit. The motor traction speed has been set at the optimal level for excellent growth which is approximately 140 seconds per metre. The time delay option allows the light mover to pause at each end