!!!Lets Finally Assemble A 250w hqi setup!!!!!

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poohbear

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Joined 2003
#1
Ok,
I havent seen a double ended 250w metal halide (hqi) setup set in stone, I know Negative Design has searched for ever so help me out here. What i found was this http://www.purelandsupply.com/item.jhtml?UCIDs=714694|1108137&PRID=1160757 It seems to be cheap with good specs (of what is listed anyway). You can browse the main page here http://www.purelandsupply.com/category.html?UCIDs=1108137 maybe someone can find one better. So that brings the total to 40$ish for the bulb. The only other parts i know of that we need are, the bulb socket (double ended) and ballast, you can work your reflectors out on your own. But is there any other pieces im missing? I think i read something about an ignitor, is it needed? I will add parts as i find them and at the lowest price and put a up to date total. If anyone has an easy cheap source that would also save time.
 
#4
Thanks this is the exact info im talking about. Now im leaning towards an electronic ballast as apposed to an hour ago when i wanted a magnetic one because of cheapness. I know parts can be bought at diylabs but i hear the color temp on his bulb is horrible.
 
#7
Actually on an older page diylabs had a couple of different double ended 250W lamps listed with a color temp of 4200 vs. the crappy 3000. I'm assuming that he would select the best one but the best bet would be to contact him before ordering.
 
#8
So the recommended is 4200? i hope so because thats all i can really find too. Now i need to find an electronic ballast and double ended socket. I think the first test im gonna do is to rip my craptastic ohp apart and put the light source in the commercial projector somehow just to make sure its not doa. If anyone thinks this is a bad idea.. IE: i could die, or mess something up, let me know.
 
#10
i dug this up from an old post of Rolms' "Furthermore, like I said on the webpage, given that the 250W HQI bulb is the same diameter as the single-ended medium-base 250 bulbs (which use a standard ballast rather than the expensive HQI ballast), this mod could be done for a whole lot less than I spent on it." Is this true? I always thought a standard 250w metal halide was way huger than an hqi...
 
#11
I would recomend you buy directly from yellertwo if you decide to go that route, but me i am very reluctanct to pay 170$ for this setup.

heres a good link for 150e http://www.bltdirect.co.uk/cat77_1.htm

they have 250 w HQI ballast for 114$ not a HUGE deal but better than 125$🙂

here are some sites in UK but i dont know about the voltages..they MAY have 120v...
http://www.lampig.com/price_list_$.htm
http://www.lampman.co.uk/

and this site seems good... try emailing them... http://www.petsupplyliquidator.com/htm/aparts_miscparts.htm
 
#14
Well, now im really not sure if i want to use a 250w hqi setup because i read an old thread about how higher power lamps (higher than the intended ones) could damage the insides of commercial projectors. Damnit now i dont know what to do, i want something brighter than the one link negative design sent me a couple days ago, its a guy who modded a sony projector with halogens if i remember right.
 
#15
Could damage it heat wise, however HQI ( metal halide) is much cooler then a halogen Example My OHP has a 410 watt fxl halogen and it warms a 20' by 15' room in 35-40 min to 75 degrees, In contrast the MH wouldnt do that, if you still concerned with heat get another pc fan and hook that up to the projector.
 
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