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767300
01-05-2008, 06:50 PM
Hi guys,

I have recived my real 762 flightdeck liner sections. The map reading lights and some other lights are included. On the back of the light units it states the units are 28volts. I presume the lights are powered from the same breaker on the flightdeck with the feed to each light going via its own switch/knob. Does anyone know if a lower voltage bulb could fit these 28v units. I have a lot of 12 and 24 volt supplys. As you can gather Im not well up on electronics etc.

Regards

James

washburn_it
01-05-2008, 07:05 PM
Well if you can supply those lamps with 24 V I think there is no problem, the light won't be at 100% of its intensity but still good.
At 12V I think they will just turn on a little bit.

Regards,

Roberto

767300
01-05-2008, 07:12 PM
Thanks Roberto,

So do you reckon a single 24v supply would be enough across both lamps?

James

washburn_it
01-05-2008, 08:29 PM
It depends on the number of lamps, how the lamps are connected (in series, or parallel) and the current that a single lamp absorbs.
When you have these info you can calculate the total power of the PSU to feed the lamps and know, then, if you need one or more supply units.

Regards,

Roberto

767300
01-06-2008, 04:59 AM
Thank you Roberto, most helpfull.

James

Jackpilot
01-06-2008, 09:43 AM
What about changing the lamps to dimable halogens (small bulbs) and feeding regular 110or220V supply? Might be less trouble...just an idea...