ADVANCED HYDROPONICS - ADD-A-LAMP X INTELLIDRIVESimply hang the growing lamps on the Lightrail and set the time of delay at each end of the rail. You can also choose the speed at which the lamp is moving. By doing this, you will be able to lighten about 50% greater area without any increase in your electricity costs as the motor of IntelliDrive consumes only 5 watts. With IntelliDrive you can also move several lamps at once. For further extension, the "Add A Lamp" device which includes another