I got my new lamp. It is for commercial projection use. people use it to replace the bulb in the commercial projector's lamp (the "light" part, the refelctor is kept).
Here is some specs:
wattage: 250W
arc length < 4mm
color temp: 6500K
life span: > 2500hr (replacing, not failure time)
ballast: integrated electronic ballast
I am going to replace my OSRAM HQI 5000K. I will post result in a few
days and compare to the HQI.
Here is some specs:
wattage: 250W
arc length < 4mm
color temp: 6500K
life span: > 2500hr (replacing, not failure time)
ballast: integrated electronic ballast
I am going to replace my OSRAM HQI 5000K. I will post result in a few
days and compare to the HQI.
Attachments
Wow! it is a wonderful lamp. how much did you pay for it? how heavy is the ballast? can the ballast be used in US (110V) ?
Re: arc length < 4mm
right. but YWH always gets great parts/price. I hope it's the same this time too
reading 3.7mm! it is the shortest that used in a DIY projector I have ever seen. 😱ywh said:
Dazzzla said:Probably expensive
DJ
right. but YWH always gets great parts/price. I hope it's the same this time too
18wheeler said:
I paid about $120 for the whole set. It is cheaper
than a HQI setup.
The ballast is 220V, but the manufacturer told me they can make it 110V if I special order a bunch. It weights about 500g, not as heavy as core and coil type ballasts.
ywh said:
I want one too!!
how many sets is the minimum order to have the manufacturer re-model the ballast to accept 110V? I am seriously considering a group buy for this 250W lamp / ballast. anyone else care to join? YWH, I will send you an email about this.
how about your NEC XGA LCD? have you solved FFC problem? it would be a killer setup to use this 250W lamp + ellipsoidal reflector + 6.3" XGA LCD.
18wheeler said:
That bulb is a double ended one. It can not be put in an ellipsoidal reflector.
Do you know how many lumens it sends out?
As for the LCD, I'm also interested.
18wheeler said:
I am gong to ask the manufacturer .........
Megaman said:
change a small screw capin one ended, connect the wire,other ended is setscrew,it can be put in an ellipsoidal reflector.
Megaman said:
like this:
An externally hosted image should be here but it was not working when we last tested it.
F2 - F1 distance is 130mm in my reflector. this lamp is 8-9cm total. put the light center at F1. it goes to additiional 45mm. it is far from the F2. just use a thin wire to connect to that end, like comercial lamps do.
I have asked. The ballast could convert to 100V-240V wide range by
replacing one of the IC chip. It costs additional ~$4. But the
manufacturer need 10 mininum order to make such change.
replacing one of the IC chip. It costs additional ~$4. But the
manufacturer need 10 mininum order to make such change.
BTW
you can buy 300W transformer
or You can buy 4 units of 220 to 110 transformer- 70W
for about 12$ each (or less)
join them in parallel in a box and you will have 280W transformer !
(you can add one more for 350W)
Shlomi
you can buy 300W transformer
or You can buy 4 units of 220 to 110 transformer- 70W
for about 12$ each (or less)
join them in parallel in a box and you will have 280W transformer !
(you can add one more for 350W)
Shlomi
Re: BTW
After chatted with YWH. I think I would go ahead and start a group buy for this lamp / ballast, as long as I can geither other 9 people.
since adding $4 we can get 110V version. I would rather go that route.
shlomid said:
After chatted with YWH. I think I would go ahead and start a group buy for this lamp / ballast, as long as I can geither other 9 people.
shlomid said:
since adding $4 we can get 110V version. I would rather go that route.
It may be helpful to the groupbuy if someone with more experience can provide links to other items (e.g. reflectors, filters, etc) that can be used with this lamp.
agent.5 said:
let's see what YWH uses in his setup. I believe we can copy his design and get same items as his.
common setup would be put light center between a spherical reflector and a condensor. the same design is used in the most OHP's
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