Hello All, I'm setting up a video display to project on to my house for christmas and halloween. Question - Is this even possible - big display smaller budget I now have the projector and looking for a lens but well on my way.. My question is more general really and that is. I have a PIR detector that senses if anyone walks up my driveway and this triggered a film to be played on a raspberry PI. The projector then displays the few minutes of film then plays a completely black film until the PIR triggers again. I set this up last year with another projector and it worked fine except a problem occurred. After playing for a couple of hours the image went dim. The PJ was a reconditioned one and was meant to contain a new bulb but still maybe it didn't so I purchased a new bulb but the image is no better , ie it is still a lot dimmer than it was, with the original bulb being slightly brighter than my new one. I've checked all the settings etc. A worry came to me. If I play a black film then all the LCD panels will be black and absorbing all the available light. Could this mean they got too hot and damaged them somehow? So my question is two fold really ,,, 1, Should a projector be able to play a black image at full intensity and not suffer any ill effects ? 2, is there a better way of doing these blacked out sections? Unfortunately the warm up time of the bulbs means I can't turn them off then back on for the display. And I have no way of knowing how many times they will be triggered ie twice a night or twenty times and I've read about turning on and off bulbs being undesirable. Any hints or suggestions ?