LED bulb direct replacement for map lite

[PTK]

Is there an LED bulb that directly replaces the map lite bulb?

I saw this on anther thread,

http://www.aircraftspruce.com/catalog/elpages/marketled.php

but it doesn't appear to be a direct swap. The present map lite bulb has a base it screws into.

[Marauder]

Pete -- the map light in my 75 is a GE 330. I put one of these in: http://www.aircraftspruce.com/catalog/elpages/marketled.php?clickkey=22805

Aircraft Spruce sells a number of LED bulbs for GE apps.

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[PTK]

Pete -- the map light in my 75 is a GE 330. I put one of these in: http://www.aircraftspruce.com/catalog/elpages/marketled.php?clickkey=22805Aircraft Spruce sells a number of LED bulbs for GE apps.Sent from my iPad using Tapatalk

Does that bulb fit the existing housing (base) Chris?

The base that screws into the bottom of the yoke that holds the bulb?

[Marauder]

Does that bulb fit the existing housing (base) Chris?

The base that screws into the bottom of the yoke that holds the bulb?

It did on mine. There was an aluminum ring that screws into the bottom of the yoke that keeps the bulb in place. Once you pull the bulb out, you should be able to confirm the number on it. My panel bulbs are all 1819s.

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[Awful_Charlie]

The 330 is a 12/14V bulb, and my bird is a 24/28V model, so take the 327. These happen to be the same as the glareshield lights, so I keep a few in the hangar for spares. In both cases, it is the retainer that screws into the fitting and uses the flange of the bulb to keep it in place.

 

I'm not sure how well the dimmer circuit will work with a LED bulb thought - please report back if you try it

[dcastor]

Incandescent bulbs have a very linear output as you decrease current, so a rheostat works well for dimming. LEDs work at full output until voltage drops below a certain point and then they turn off, so the dimmer won't be effective on the LEDs. Dimming LEDs is usually accomplished by turning on and off the LED so fast. The eye can't see it. Increase the percentage of time the LED is on and it appears brighter.

But for the map lite...I doubt you'll have a need to vary the brightness much.

Dave C

[carusoam]

I used the whelen LEDs to illuminate the IP on my 65C.

They would dim as long as they were in series with the non LED bulbs...?

Seem like a really really old memory. Does it make any sense?

Best regards,

-a-