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Lamps


tbexon

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Hello

 

Quick question about arc lamps (specifically about ones in mac 250's and mac 300's)

 

We've just had a company in replacing the lamps in our 250's and 300's and something they hinted at got me wondering. what actually happens should they be allowed to 'blow' e.g ignoring the lamp timer etc. I read this and they seemed to suggest that if you have the long lasting ones they can literally explode. I realise either way their going to wreck the unit but how badly can they 'blow'

 

apologies for any poor spelling/terminology

 

Thanks

Tbexon

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IF a discharge lamp dies catastrophically it may destroy the inside of the lantern. The casing is supposed to decelerate the fragments it may not survive in repairable condition. The life of a lamp is partly determined by light output falling to half it's original figure, so if you must burn a lamp that far as to finally kill it the light out will be very low compared with a new lamp.
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Yeah as said, they don't always blow, but if you are leaving them until the end of their life, you would probably notice a lot of difference, where they are usually a brownier output colour and no where near as bright. But yeah when they do blow, its pretty huge and usually takes out a huge chunk of the internals at the rear of the light.
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