The LG PG85U is completely LED-based and has a 30,000 hour lifespan. Most pressure lamps found in normal projectors are intended to last between 2,000 and 4,000 hours and can be quite costly. With the cost of pressure lamps and the fact that they slowly degrade throughout their life, making the picture dimmer all the time and the picture less appealing, you can understand why one would be excited about an LED-based projector. All you have to do is hook it up, never worry about it again, and know that your picture quality isn't degrading every single time you use it.
There are a few problems with the idea of an LED-based projector though. Yes, they do last longer, a LOT longer. But, pressure lamps are still much brighter than any LED light on the market today. For some people, this may not be that much of an issue. If you are typically viewing your projector screen in a dimly lit or dark room, it may not be a very big deal. For everyday life, and for those using it in a not-so-dimly lit room, this could become an issue. You may run into problems when factoring in screen size as well. Pressure lamps will naturally be able to supply you with a larger screen while still retaining good picture quality. An LED-based projector would probably have a hard time doing that.
With all that being said, LED lights are getting better all the time. The LED lights on the market today are much brighter than they have ever been, even just a few years ago. When this projector becomes officially available to the public, it might completely blow us away. Only time will tell. Either way, I think that LED projectors are a great idea with lots of potential. LED's could be the way that the industry goes, and we may see a lot more projectors like this.
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