I've just purchased a brand new lamp for my Data Projector of Ebay.
The guy was selling my type and others for 125GBP, RRP anywhere between 180 to 240GBP.
The crunch is this lamp is interchangable with various other Sony DP's yet stockist have a price for one model and a higher price for another,yet the lamp is the same as the lower price model.
If thats not ripping joe public off I don't know what is.
Just because it will physically fit, does not mean it will work properly. Assuming it truly is identical, it's not inconcievable that some projectors will be slightly subsidised by their lamp price.
The lamp has the same markings as the old lamp and is the same wattage(120w UHP) LMP 120 & LMP S120,*S* representing Sony
wattage(120w
Anyone interested this will also fit Models: VPL-FE100U/E/M and VPL-FX200U/E/M
dimensions 70x84x65mm (w/d/h)square
I don't know this lamp specifically, but as a general comment, beware that these lamps can be very dangerous because they have a very high pressure gas fill, 10-20 atmospheres even when cold, and 200 atmospheres when hot (that's 3000 lb/inch²). This means they can explode if they have been stressed, scratched, dropped, or even just used for too long or temperature cycled too many times. Treat each one as a primed bomb. I would suggest wearing goggles when handling them, particularly if there's any chance you might be fitting an incompatible lamp.
You forgot to mention shock :-( wear rubber gloves when fitting as the transformer output is 1.2Kv.
Citroen did the same with rear brake pads
BX cost x XM different part number cost x+50%
Bendix who make the calipers list them as the same part for both applications
It is called perceived value
HTH Phil
If you think that's bad, my Sagem DLP projection telly has a lamp price of around £350 for a replacement with around 8000 hours life. Admittedly, it comes in a neat easily-changed cartridge, but the bulb itself is a standard Osram UHP 120W model (as used in projection tellys the world over) and is freely available from Ebay etc for around 75 quid.... Guess what I'll be doing when my lamp goes! Lots of people have already done the swap, and it works fine, thereby saving the end user some £275.....
Hellraiser................>
Was thinking of converting the power stage to 240v halogen and doing away with EHT transformer,to supply a normal halogen bulb,alas they don't do 120w
240v ones? The bulb housing wouldn't be a problem to accept these.
????? Don't fit it with the unit turned on, no risk of shock at all then.
Are you familiar with EHT circuitry?
There is a reason they don't use halogen - if you have ever seen one of these projector lamps running out of the case, you will immediately see why - the colour is much whiter, and the intensity is bordering on 'scary'...! A comparable brightness halogen would melt everything in no time.
The 1.2KV is only an initial low-current pulse used to strike the lamp. When running it's more like about 60-80V from memory. However evary projector I've taken apart has a mains-isolating interlock that prevents access when power is on ( at least not without significant effort).
I would have guessed the starting voltage would be significantly higher than that, but the operating voltage of these short arc lamps is quite low -- of the order of some tens of volts only.
Whilst the explosion risk might not have been apparent until pointed out, anyone playing with one of these live is really just volunteering for a Darwin award.
Many parts for Skoda/Seat/VW are also identical and priced incrementally according to the car that they are required for.
Sometimes they even fit an Audi as well so you might get to pay three times the price for the same thing.
tim
120W halogen bulb would be some 4-5 times dimmer, and have much less blue. Also slightly hotter.
So did Triumph. The TR4A and Spitifire windscreens are identical, but the TR one costs about twice as much.
Ian
They do. I'm looking at one now. I've only had it turned on once, and my goodness, it was bright. Also has UV warnings plastered on the box.
It's only the same as a car part costing different amounts depending on whether it comes in a Skoda, SEAT, VW, Audi or Porsche box.
We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember "George" saying something like:
It's not the public that's the target market. These projectors are still mainly bought by corporate customers who might not know or care very much about the running costs and the suppliers are very well aware of this.
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