| javi6543 |
| I´ve read in the forum that the overhead projector should be 4.000 lumen aprox. por good results, my question is, if i get an OHP with less lumens, can i upgrade it changing with more powerfull bulbs? or did it crash it? Should i change the fan too? Thanks in advance. |
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| hakkukakt |
yes you can, but pehaps you must doing little adaptation for your new light...
1. depend Voltage and Power of new light
2. Hallogen or HQI => HQI need ballast
3. yes pehaps you need mount a more big fan (but you need test for saying)
good luck |
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| javi6543 |
the question is that in spain is a little difficult to find an OHP, i have foud one of 2500 lumens, exactly a kindermann with 2 halogen lamp 400 watt, and i would know if i could install a MHC150/U/M/4K Light Bulb which has more life hours.
Is it possible? What is a ballast??, i've read a threat about create an own ballast, but i don't understand what is it used for.
Could you help me please, i would be very pleased. |
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| hakkukakt |
hi
a ballast is for doing a high voltage for ligh style HQI (the same system for neon light)
but a 400 W halogen is more suffisent for start a diy projector and doing test :D |
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