Landing Light: Upgrade to LED

Discussion of aircraft electrical system design, construction, and problems.

Re: Landing Light: Upgrade to LED

Postby Bryan Cotton » Tue Feb 14, 2023 1:11 am

Here are my new mounts/heat sinks. 0.25 lbs for the two lights. I still need to add the molex connector.
heat sink.jpg


With no heat sink the light got too hot to touch very quickly. I ran one light for 45 minutes and it was just a little warm. I used heat sink compound between the circuit board and my new part. It's pretty much all .016 except the additional heat sink on the second one is made out of flashing, which is .010.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Bryan Cotton
 
Posts: 5034
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Location: C77

Re: Landing Light: Upgrade to LED

Postby Bryan Cotton » Sun Feb 19, 2023 1:34 pm

Here is my final installation. For the weight and budget conscious Sonex builder this is the way to go. Cheap LED lights mounted to a thin aluminum box for mounting and heat rejection.
New light installed.jpg


No radio noise. Now I can wig-wag in the pattern.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 5034
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: Landing Light: Upgrade to LED

Postby Bryan Cotton » Tue Mar 07, 2023 10:00 pm

My lights are discontinued. I bought a pair of these to play with:
https://www.amazon.com/gp/aw/d/B00G620ZVU

They draw a little less than 1A each and seem like a more focused beam. Only $16.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 5034
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

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