Im wondering mostly whats the diffrence between the metal halide bulbs used in everyones projector and this one at home depot.
Couldent i just use one of those with a cheap lightbulb socket and give it 250 watts instead of paying 200+ USD for the usual MH system?
Also does anyone know the typical CRI rating on pure white LED's?
Couldent i just use one of those with a cheap lightbulb socket and give it 250 watts instead of paying 200+ USD for the usual MH system?
Also does anyone know the typical CRI rating on pure white LED's?
You might want to check their stuff again. Metal Halides at Home Depot are more expensive than $200. Plus if you click on more info, it will say they no longer carry those. The bulb isn't the thing that costs very much. It is the Ballast, igniter etc. home Depot runs around $280 for a setup. Normal 120v out of the wall current won't run a Metal Halide. It has to have the other stuff. Good luck, and keep searching. 😉 I have learned a bunch from these guys and Diyprojectorco also. still learning😀
You could go with something like this from them, but the color of the light is more yellow than you will want. http://www.homedepot.com/prel80/HDU...TTYPE=PROD_META&CNTKEY=misc/searchResults.jsp
You could go with something like this from them, but the color of the light is more yellow than you will want. http://www.homedepot.com/prel80/HDU...TTYPE=PROD_META&CNTKEY=misc/searchResults.jsp
Until yesterday night i had no idea ballasts and igniters where needed. Little bit of a shock 😛. Im going to have to stick to somthing cheaper and maybe pull it when i have some money and want a better picture.
And i dont tihnk im looking for a home generator right now, but thx
.
Thx for the info.
And i dont tihnk im looking for a home generator right now, but thx
.Thx for the info.
Actually, Home Depot in Canada has 400W MH low-bay fixtures complete with bulb and ballast. Just plug it in.( of course you will have to take it out of the fixture though ) They stock them here in BC, your local store should be able to bring one in if they don't stock them. Price? $108.00 CAD. Quite cheap.
Another option for price is do what I did for my first setup and get a ohp bulb with reflector from Office depot. They will give you the best bang for a low dollar, and you can wire directly to a light dimmer switch, and adjust it to what the bulb requires. Total money involved should be less than $30.
lamps
Tungsten halogen lamps put out much more heat than a Metal Halide arc lamp. So you nave to be much more careful about cutting IR, fan cooling, etc. with a halogen lamp. The color temperature is much lower than you really need: 5000 to 6000 K works best with an LCD, because that matches the color temp of the standard backlights. Halogen lamps run for 100 to 1000 hours, as opposed to 10000 to 20000 hours for some MH lamps. They also use more Watts per lumen than MH, so they are either dimmer or they cost more to run.
On the other hand, you can buy halogen lamps at Home Depot that run right off 120 or 240 VAC, with nothing but a lamp socket.
Tungsten halogen lamps put out much more heat than a Metal Halide arc lamp. So you nave to be much more careful about cutting IR, fan cooling, etc. with a halogen lamp. The color temperature is much lower than you really need: 5000 to 6000 K works best with an LCD, because that matches the color temp of the standard backlights. Halogen lamps run for 100 to 1000 hours, as opposed to 10000 to 20000 hours for some MH lamps. They also use more Watts per lumen than MH, so they are either dimmer or they cost more to run.
On the other hand, you can buy halogen lamps at Home Depot that run right off 120 or 240 VAC, with nothing but a lamp socket.
But don't forget that while halogen produces more IR, metal halide produces more UV. So you have to do something to filter either one. IR will cook the LCD and UV will fade it. Due to the low cost of most components involved, a lot of people are just using a piece of coated Lexan XL.
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