How long do you have to wait for the lamp to cool down before moving this projector from one classroom to another?
1115269
It cools down very quickly. We've had no problems with this projector and it is used very often.
1115270
Timing is everything. If you have to move immediately, unplug, move, use caution to avoid the warm projector parts. Usually if I have to move or close up, I turn off the projector before I talk to anyone or start any clean up. The projector is built to withstand heavy usage. Works for me.
1758031
The light stays on as long as it detects movement and it is dark. Once movement is no longer detected, it takes about 20 seconds or so to shut off.
1903176
The diodes are very heat sensitive. Having the unit unventilated could shorten the life of the lamp.
1499667
as long as the cables are connected you can leave it under a lamp for awhile beforetaking it outside. i would leave it under the lamp until it started buzzing every 30 seconds or so.than place it in the ground about 3-4 inches from the underside of the solar panel and in a constantsun area. works good and have had no problems.
1730391
There's also a sensor slider switch between lamp and reset switch... I believe it's a motion sensor. If it does not sense any movement for awhile, it will shutoff. Switch this to off if you want the stars continuously on or timed for an hour.
2235111
About 3 hours is probably the longest I've used the lamp (I use it in my sewing room). I use CFL 120v 14w and don't recall that it got hot.
1203908
I don't know. Mine is a 4400. I didn't think lamp replacement would be a problem - but it is! It seems that slides are obsolete! If you do replace the bulb, be careful putting it in. Wear gloves because even a microdrop of body oil will cause the wretched thing to explode. I found THAT out the hard way! If the cost of a Powerpoint projector ever gets reasonable, I guess I'll have to make the switch.
322337
As an engineer that designs movie theatres, there are two possible answers:1. The lamp is defective.2. You are cutting the power and the lamp cant cool. Typically, when you turn off the lamp (via the screen prompt), the fan in the projector continues to run even if the lamp is off. If you cut the power instead of shutting down via the prompt, the fan does not run, the lamp will over heat and explode.
1146075
I would stick with the factory-recommended bulb, otherwise, the projector may either overheat or not perform satisfactorily.Al
646845
Yes you can unplug the projector there is no need to cool down. This is a great feature.
1690123
I did not try doing that. I'm assuming this is a special glass which will not reflect back at the lens or cause any distortion. If this glass is meant to be like a protective cover in front of the projector, just maintain (in my opinion) around 10-12 inches of distance. The lamp cooling fans are in front so you'd like to leave space for efficient air flow.
339108
Easy! The bulbs last forever basically, when your bulb starts to go out you will start to notice it becoming dimmer and dimmer. Slap in a brand new bulb and your projector is like new again! Plus its a special kind of high powered bulb.
1846086
I havent timed it but, yes it takes a few minutes to start up(i dont think as long as 5-6 minutes) and has some delay with button response when compared to my plasma TV, but this is my first projector and the professional installers(who have done many) seem to believe the delay was completely appropriate
744362
It is probably the light bulb, which is hard to get to. When my did that I just bought another inexpensive projector. Mine lasted for about 6 years. These are not meant for more than a few hours at a time. They over heat. Also try this, start the video, t.v. or game before you turn it on. Sometimes depending on which device you are projecting, you have to switch the cords around.
1151495
I have not measured the temperature after the light being continuously on for a long time, but there is a plastic shroud over the electrical terminals. If the light gets too hot it will melt the shroud. I hope that will not happen.
384417
No.but you don't have to worry about that.the LED will far outlive the projector.at 20k hours, you can use it anywhere from 4 to 10 years.
412455
I use a timer on mine. One like I use on lamps when I go away for a week or so.