I got my new lamp. It is for commercial projection use. people use it to replace the

[ywh]

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.

[18wheeler]

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) ?

[ywh]

arc length < 4mm

[Dazzzla]

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) ?

Probably expensive

DJ

[18wheeler]

Originally posted by ywh
arc length < 4mm

reading 3.7mm! it is the shortest that used in a DIY projector I have ever seen.

Originally posted by Dazzzla
Probably expensive

DJ

right. but YWH always gets great parts/price. I hope it's the same this time too

[ywh]

Originally posted by 18wheeler
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) ?

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.

[Dazzzla]

I paid about $120 for the whole set.

[18wheeler]

Originally posted by ywh



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.

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.

[Megaman]

Originally posted by 18wheeler

it would be a killer setup to use this 250W lamp + ellipsoidal reflector + 6.3" XGA LCD.

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.

[ywh]

Originally posted by 18wheeler


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.

I am gong to ask the manufacturer .........

Originally posted by Megaman


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.

change a small screw capin one ended, connect the wire,other ended is setscrew,it can be put in an ellipsoidal reflector.

[18wheeler]

Originally posted by Megaman


That bulb is a double ended one. It can not be put in an ellipsoidal reflector.

like this:

[18wheeler]

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.

[ywh]

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.

[shlomid]

Thanks

[shlomid]

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

[18wheeler]

Originally posted by shlomid
Thanks

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.

Originally posted by shlomid
you can buy 300W transformer

or You can buy 4 units of 220 to 110 transformer- 70W
for about 12$ each (or less)

Shlomi

since adding $4 we can get 110V version. I would rather go that route.

[agent.5]

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.

[18wheeler]

Originally posted by agent.5
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.

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

[Mikey p]

The specs of the bulb list everything except the lumen output. Anybody know what it is?

[ywh]

Originally posted by Mikey p
The specs of the bulb list everything except the lumen output. Anybody know what it is?

I have asked, the luminous flux:
20000 lumen

[pinkmouse]

They look like Osram HTI300 lamps to me. Very nice colour rendition, and if you don't keep trying to restart them when hot, and run them for at least half an hour each time you turn them on, then you should get around 800hrs of useful life.

Make sure the pinch seal on the capsule faces down, or they could explode. You will need UV filtering!

[shlomid]

Here a link to a lot of lamps:
http://www.eurotekmarketing.com/lamps/lampsnew.htm

you can see there the HTI 300W/DX


BTW

I found a lamp: OMNILUX ODM 150W G-12 6000h 6000K .
with the same 230v like the CDM-T 150/830 Lamp(same ballast).
About a 9000-11,000 lumen

search in this link for "OMNILUX ODM 150W" (you also have english ver to this site)

http://www.steinigke.de/shopneu2/ind...e64c343&lang=E

Shlomi

[ywh]

pic

[18wheeler]

how large is the screen? did you see any increase in brightness? if so, how much in percentage?

[shlomid]

Were can I buy this bulb and ballast ?



Thanks

[ywh]

The lamp / ballast set was bought from a factory near me, but they
don't do export. the ballast is 220V only. To make it accept 110V
input, the ballast needs to be modified. The manufacturer requires at
least ten sets to be ordered in order to make such change.

18wheeler is going to setup a group buy. You can contact him.

18wheeler ! the screen is 100',

[18wheeler]

I have set up a groupbuy for this short arc lamp / ballast set. The page is here. The thread for the group buy is here

[prime]

ywh,

Will this lamp work with a 250W electronic ballast or will it only work with the supplied ballast?

I'm asking because I may buy several lamps but if the ballast was to die then I could use a locally available eballast.

[ywh]

I am tied up with the work right now. More pictures and comparison
will be posted once I have spare time ( in a few weeks).

So far, picture with this lamp is brighter than 250W HQI. in the
picture posted above, the sky is almost too bright to stare at. My
eyes hurt when looking at the bright area. I also feel the picture is
sharper and contrast is increased. Comparing to this lamp, HQI seems
to have a 'softener' lens on.

I tested emitted heat by putting my hand in front of the light. It
feels cooler than HQI. Heat glass is no longer a must-have. Also lower
speed fans can be used, so noise can be decreased too.

[18wheeler]

Originally posted by prime
ywh,

Will this lamp work with a 250W electronic ballast or will it only work with the supplied ballast?

I'm asking because I may buy several lamps but if the ballast was to die then I could use a locally available eballast.

it might, but I doubt a normal ballast can power it. the tructure of the lamp is very much like a small version HMI 575W. HMI uses very different ballast as far as I know.

Originally posted by ywh
I also feel the picture is sharper and contrast is increased. Comparing to this lamp, HQI seems to have a 'softener' lens on.

It is expected because there is less defused light, which would blur the image.

[bodgy]

whats the story with bulb life?

> 2500hr (replacing, not failure time) or 800hrs if treated well like pinkmouse says?

oh yeh and if you're gonna order one of these prime, maybe we could do a group order... any other aussies are keen?

[prime]

Osram seem to have 2 different 300W HTI lamps, one with 750 hour life the other with 3000 hour life. so I hope ywh's lamp is like the 3000 hour type. Here are the catalogue links:
http://catalog.myosram.com/srvc/z_ca...=4050300370651
http://catalog.myosram.com/srvc/z_ca...=4050300651248

bodgy: I was thinking that there may be other aussies interested so we could ask ywh to send ours direct to Australia.

I'm currently using a 150W (osram HQI-T/Sylvania HSI-T) lamp with 8mm(?) arc in my OHP retrofit with SGI 1600ww (only using part of lcd), I was previously using 150W lamp with 17mm arc and there is a definite improvement with the shorter arc so a 3.5 arc will be even better. links for my current lamp:
http://catalog.myosram.com/srvc/z_ca...=4050300872902
http://www.sla.net.au/product.php?p=351

[vindicare]

im interested in this lamp also, especially if we can get it shipped directly to aus and soon

[shlomid]

Originally posted by ywh
The lamp / ballast set was bought from a factory near me, but they
don't do export. the ballast is 220V only. To make it accept 110V
input, the ballast needs to be modified. The manufacturer requires at
least ten sets to be ordered in order to make such change.
,

ywh - the 220 ballast is good for me , In Israel we use 220v.

BTW can you see my mails?

Thanks
Shlomi

[18wheeler]

Originally posted by bodgy
whats the story with bulb life?

> 2500hr (replacing, not failure time) or 800hrs if treated well like pinkmouse says?

oh yeh and if you're gonna order one of these prime, maybe we could do a group order... any other aussies are keen?

The lamp is not a HTI300. The manufacturer has rated lamp as 2500 hr. Hope ywh will get more specification from the manufacturer. then we will know what it resembles.

[ywh]

The lamp is not an ordinary MH lamp. The manufacturer stated it as UHP
(ultra high pressure) lamp. On the other hand, I used HTI300, the lamp
was very hot, print paper will be scorched at 8cm away, 250W HQI will
do the same at 3cm distance, and this lamp is cooler than 250W HQI. I
havn't test the "scorching distance" yet.

hi shlomid
this is my e-mail yuweihua@tom.com

[shlomid]

How much volts in this 250W lamp?

I have DC 150W 60V ballast from hitachi projector
What would happen if I use this lamp in it
the original lamp has arc of 2-3mm

Will it start?
What about the color temp?
How economical mode operating in compeny projector?

I know that the picture will loss brightness
shlomid

[ywh]

Which hitachi projector ?model?
I can get DC 150w lamp,same price.

[18wheeler]

Originally posted by shlomid
How much volts in this 250W lamp?

I have DC 150W 60V ballast from hitachi projector
What would happen if I use this lamp in it
the original lamp has arc of 2-3mm

I won't mix 250w lamp with a 150W ballast. Most likely it won't light. And there is danger that the ballast might be damaged. but it would be fun to try out 150W lamps that ywh has.

[shlomid]

The projector is Hitachi CP-S830

Thanks

[18wheeler]

our group buy is taking payment right now.

vindicare, please email me if you want to participate. the set will be sent to you directly from China which will save time for you.

Originally posted by vindicare
im interested in this lamp also, especially if we can get it shipped directly to aus and soon

[sabrex]

How long does it typically take to get a shipment from china? Just wondering.

[18wheeler]

ship is via airmail. thus, I would guess 1-2weeks top.

[ywh]

http://www.chinapost.gov.cn/yyzn/zif...arcel_1_En.asp

[slodki]

Excuse my ignorance, but would it be possible to use this light instead of the typical 400w MH bulb in a 15inch projector?

What would be the difference in picture? Besides less heat, etc etc..

I thought that the 6500K colour temp is a bit too cool?

Lastly, what type of reflector would have to be used?

Thanks

Also, any other aussies that might be interested?

[prime]

Hi ywh

How does the ballast wiring attach to the lamp ends? got any pics?
Are there any holders for the lamp or will I have to make something up?

[shlomid]

Originally posted by slodki
Excuse my ignorance, but would it be possible to use this light instead of the typical 400w MH bulb in a 15inch projector?

What would be the difference in picture? Besides less heat, etc etc..

I thought that the 6500K colour temp is a bit too cool?

Lastly, what type of reflector would have to be used?

Thanks

Also, any other aussies that might be interested?

you can use it with 15" projector and it will be more simple to collect all the light from the lamp.
if you move in the future to smaller lcd you have much better results with this lamp.
This lamp also has less heat.
the color temp of 6500k is just fine and much better from 5200K lamp, most of the company projector use 6500K.

Shlomid

[18wheeler]

Originally posted by slodki

I thought that the 6500K colour temp is a bit too cool?

Lastly, what type of reflector would have to be used?

6500K is color temp of daylight ( someplace state as 6000K )

it can be used with a spherical reflector like other MHs, including HQI, do. or you can use it with an ellipsoidal reflector if you got one.

Thanks

Also, any other aussies that might be interested? [/B]

yes, there were two.

Originally posted by prime
Hi ywh

How does the ballast wiring attach to the lamp ends? got any pics?
Are there any holders for the lamp or will I have to make something up?

it can use the same attachments that HMI lamps use. we will see if YWH can convince the manufacturer to throw in a free pair in each set (crossing fingers)

[slodki]

Originally posted by shlomid



you can use it with 15" projector and it will be more simple to collect all the light from the lamp.
if you move in the future to smaller lcd you have much better results with this lamp.
This lamp also has less heat.
the color temp of 6500k is just fine and much better from 5200K lamp, most of the company projector use 6500K.

Shlomid

Thanks for the reply..

One thing i have noticed on these forums is that people generally use an OHP and modify it to make their projectors..

I am thinking of actually making a box, etc, not using an OHP parts, and make my projector that way.

So is it still possible to use this bulb as a lightsource? Also, what kind of reflector would be needed?

Once again, sorry for my ignorance. I always thought that to get good results, you need high lumens etc, just have to try to understand the concept being that a smaller arc lenght lamp can produce same if not better results to a 400W globe..

Last question i promise Is the main use of this bulb for smaller size screen's, would people generally use this for say a 7inch lcd? Or the people that will buy this..will they use it for a 15inch. Then, if they are using it for a 15, is it for an OHP, or box built one?

Thanks
slodki

[slodki]

Also, what is the CRI of this bulb? I havn't seen it mentioned yet..