How long can I leave my Projector on? - AVS Forum
Forum Jump: 
 
Thread Tools
Old 04-29-2008, 11:21 PM - Thread Starter
Member
 
toshibafan's Avatar
 
Join Date: Apr 2008
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Hi, I was originally going to buy a lcd tv but now im thinking of getting a projector instead.
My question is, seeing as this will be my main viewing device used for movies,games and tv how long can I have the projector on before I must turn it off to cool down?
Would 10hrs be fine?

Thanks
toshibafan is offline  
Sponsored Links
Advertisement
 
Old 04-30-2008, 12:14 AM
AVS Special Member
 
Pure-Evil's Avatar
 
Join Date: Jul 2002
Location: Windsor, Ontario, Canada
Posts: 3,804
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 139
leave it on as long as you have money for new bulbs....time is not a problem as they have fans to keep them cool
Pure-Evil is offline  
Old 04-30-2008, 12:32 AM - Thread Starter
Member
 
toshibafan's Avatar
 
Join Date: Apr 2008
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I was thinking of getting the new Acer H5350 because it has a 4000hr bulb life (eco mode) so if the bulb fails early and only lasts 3000hrs and I watch the projector for
10hrs everyday I should get about 200 days of viewing.

My main concern was the wear and tear on the projector from using it everyday for 10 or 12hrs.
But it seems it should be fine. I remember years ago when I worked at a sports bar they had their projector on everyday for about 12hrs straight and didnt have any issues with it. But I still wanted to get the opinions from the avs forums before I went ahead with purchasing the projector
toshibafan is offline  
Old 04-30-2008, 02:13 AM
AVS Special Member
 
Pure-Evil's Avatar
 
Join Date: Jul 2002
Location: Windsor, Ontario, Canada
Posts: 3,804
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 139
Sim2 projectors do 6000 hours in econo mode.....just fyi there are a few on ebay right now under $1000.00
Pure-Evil is offline  
Old 04-30-2008, 04:41 AM
Advanced Member
 
btokars's Avatar
 
Join Date: Jul 2002
Location: San Francisco
Posts: 790
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Our Optoma HD80 is on, on average, for 10+ hours a day. No problems.
btokars is offline  
Old 04-30-2008, 05:59 AM - Thread Starter
Member
 
toshibafan's Avatar
 
Join Date: Apr 2008
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Thanks for the feedback.
I also wanted to ask, do most projectors have like a sleep timer option so I can set it to shut off automatically?
toshibafan is offline  
Old 04-30-2008, 03:32 PM
 
mjg100's Avatar
 
Join Date: Dec 2006
Posts: 9,112
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 13
Quote:
Originally Posted by toshibafan View Post

Hi, I was originally going to buy a lcd tv but now im thinking of getting a projector instead.
My question is, seeing as this will be my main viewing device used for movies,games and tv how long can I have the projector on before I must turn it off to cool down?
Would 10hrs be fine?

Thanks

I think that is like asking: How many licks does it take to get to the center of a Tootsie Roll Pop? It will vary from projector to projector.
mjg100 is offline  
Old 04-30-2008, 04:06 PM
Member
 
salty's Avatar
 
Join Date: Nov 2006
Posts: 86
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
I turned my PJ on and off a lot to avoid leaving it on all day. My bulb popped at 900 hrs! My bulb lasted one year, and is rated for 2000 hrs on brite mode.

My conclusion is that leaving the PJ on for long periods is not a problem. It's the on/off cycle that quickly ages bulbs-I didn't really believe that, now I have proof.

PJ is a mits hd1000u
salty is offline  
Old 04-30-2008, 04:06 PM
AVS Special Member
 
Sheridan1952's Avatar
 
Join Date: Aug 2002
Location: Texas
Posts: 1,918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 16
For what it's worth, I manage 20+ Infocus projectors for sports bars. They are on 16/7.
Sheridan1952 is offline  
Old 04-30-2008, 10:22 PM
Advanced Member
 
Gushy's Avatar
 
Join Date: Jul 2004
Posts: 599
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
The cycling on and off is what kills the bulb IMO.

I have had 3 pj's and put 7000+ hours across them. I have indavertently left ALL 3 pj's on for 24 hours. I have never replaced a bulb.

I've owned x1, 4805, and now mits hd1000u with over 2000 hours no problems.

Wife factor? Hell, my electronics keep me warm at night.
Gushy is offline  
Old 04-30-2008, 10:37 PM - Thread Starter
Member
 
toshibafan's Avatar
 
Join Date: Apr 2008
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
My other concern is that summer is approaching and it gets quite warm in the house from the bright sun, does that effect the projector`s stability or doesnt it matter because the projector fans will still keep it operating at a normal temperature?
Maybe I should invest in a airconditioner for the room LOL!

@Sheridan1952:
Do the projectors bulbs last their quoted lamp life still?

@salty:
Yes I read on this forum that each time the projector is turned on you can minus 2hrs from its lifespan.
toshibafan is offline  
Old 05-01-2008, 08:04 AM
AVS Special Member
 
Sheridan1952's Avatar
 
Join Date: Aug 2002
Location: Texas
Posts: 1,918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 16
If you can stay in the house comfortably, it is fine for the projector.

Most of the lamps usually last their rated life. Some have lasted longer, some fail early. It's a crap shoot.



Quote:
Originally Posted by toshibafan View Post

My other concern is that summer is approaching and it gets quite warm in the house from the bright sun, does that effect the projector`s stability or doesnt it matter because the projector fans will still keep it operating at a normal temperature?
Maybe I should invest in a airconditioner for the room LOL!

@Sheridan1952:
Do the projectors bulbs last their quoted lamp life still?

@salty:
Yes I read on this forum that each time the projector is turned on you can minus 2hrs from its lifespan.

Sheridan1952 is offline  
Old 05-01-2008, 08:08 AM
AVS Special Member
 
E-A-G-L-E-S's Avatar
 
Join Date: Aug 2007
Posts: 7,721
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Keep in mind that many PJ's do not make it to the expected time.
Especially if you have it on all day many days a week, like your only display could/would be.
If you turn it on/off a couple times a day it dies even quicker.
If it is your only display I would buy a replacement lamp or two at the time of purchase.
E-A-G-L-E-S is offline  
Old 05-01-2008, 09:06 AM - Thread Starter
Member
 
toshibafan's Avatar
 
Join Date: Apr 2008
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Thanks, yes I plan on buying at least one replacement bulb at the same time of purchase.
toshibafan is offline  
Old 05-05-2008, 10:05 AM
Senior Member
 
killerdoberman's Avatar
 
Join Date: Oct 2006
Location: Toms River, NJ
Posts: 311
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 14
I watch my projector everyday and leave it on for 12-18 hours. Sometimes over night depending if its a holiday when the family is in town.

I replace the bulb on the HD70 after 5200 hours!

Start-ups and shut-downs are the killer when it comes to bulbs. And don't forget about heat, that will kill it, too.

My DIY Rack
I took the RED pill.    ...and still haven't swallowed the BLUE pill.

killerdoberman is offline  
Old 05-05-2008, 10:47 AM
Senior Member
 
Ecuadorian's Avatar
 
Join Date: Feb 2008
Location: Guayaquil
Posts: 227
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by toshibafan View Post

My other concern is that summer is approaching and it gets quite warm in the house from the bright sun, does that effect the projector`s stability or doesnt it matter because the projector fans will still keep it operating at a normal temperature?

Toshibafan, if you really want to know how projectors perform in extreme conditions, read this article:

http://www.projectorcentral.com/lcd_dlp_test.htm

As you can see, even compact projectors can survive 24/7 operation in a HOT environment. And this test was done years ago; today's projectors should be better.

-Miguel Lescano
Ecuadorian is offline  
Old 05-05-2008, 09:30 PM
Advanced Member
 
GregK's Avatar
 
Join Date: May 2001
Posts: 566
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Have to write this quickly.. as it's from from work.

In our MCR, we have had DLP and LCD projectors running 24/7. As long as you have the money to feed them bulbs and clean the filters once in awhile, you're good to go.
GregK is offline  
Old 05-06-2008, 06:41 AM
Senior Member
 
scenaria's Avatar
 
Join Date: Nov 2003
Location: Orlando
Posts: 225
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Its not a matter of lamp life but rather panel life if your using an LCD. I have had a few projectors in the past in which the heat build-up became so extreme the panels would heat up and warp. obviously this isnt the case with all projectors but in some instances you will notice your color purity deteriorating as the polarizer burns and the panel/s warp from too much heat. just an FYI keep the filters clean!
scenaria is offline  
Old 05-07-2008, 11:55 AM
Senior Member
 
Ecuadorian's Avatar
 
Join Date: Feb 2008
Location: Guayaquil
Posts: 227
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by scenaria View Post

in some instances you will notice your color purity deteriorating as the polarizer burns and the panel/s warp from too much heat. just an FYI keep the filters clean!

Current DLP models are designed with no air filters to clean, and since the color wheel is dichroic, color purity is well preserved even in extreme conditions.

-Miguel Lescano
Ecuadorian is offline  
Old 05-07-2008, 12:11 PM
Advanced Member
 
ferbal's Avatar
 
Join Date: Oct 2005
Posts: 569
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 17
Quote:
Originally Posted by toshibafan View Post

Thanks, yes I plan on buying at least one replacement bulb at the same time of purchase.

Better than that, if you are going to use the proyector many hours a day I would recommend you to buy an extra warranty that also covers the lamp.
ferbal is offline  
 
Thread Tools


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off