EBME Forums Forums Maintenance Technical Assistance light source keeler

i have 1 unit light source 200watt fibrelite illuminator. right now, this equipment is not function. i have replaced bulb with new bulb ge projector bulb 24volt 200watt but still not function. i have measured incoming voltage on the bulb termanition, 26 volt is exist but the still no light.. anyone could advise me what kind of bulb i should used.

Have you a high impedance power supply. It would read correct voltage open circuit but when loaded by a high power bulb the voltage would drop to a level that would not illuminate the bulb.
Check the voltage with a bulb in place. If the voltage is still good you might have a broken new bulb. It is not unknown.
Robert

U/S new lamp (bulb), or grotty connections would be my guess(es)!

Had something similar to this, Turned out to be a high impedance bulb due to corrosion/oxidation on the new bulb pins. I would try another make of bulb.

... or clean up the contacts/pins!