[Previously posted in DIY section - but no response] I've just bought a Draper electric screen to go with my Seleco projector. I would like the screen to drop when I turn on the projector, and raise when the projector is turned off. The plan is as follows: Use he 12V trigger from the projector (with a relay) to make the 'Down' connector on the screen motor live. When 12V is not present (ie. proj turned off) the 'Up' connector would be live, hence the screen would retract. The 'Up' connector would therefore be live for most of the time. My question is this: Is it OK to have the 'Up' connector live for such long periods of time? I would guess that the power to the motor is cut as soon as the screen reaches the end stop - so I think it's OK. Can anyone confirm? The only alternative I can think of is a separate power switch for the screen, but this obviously defies the point of the auto-switching! Thanks in advance, Ben.