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Old 08-03-2018, 01:37 PM
Boyd Birchler Boyd Birchler is offline
Join Date: Sep 2014
Location: IN
Posts: 158

Only high beam is used. These lights are dual beam (I'm guessing that actually means bright and dim/low beam or high beam is on one or the other is off.). You need to power neutral and high beam positive, the low beam is never powered in our application. The info in the box/package has no polarity pin out for the plug (they assume you are using it on a car). With the prongs on the plug facing you and the center prong on top, neutral /negative is to the left and Positive/high beam is the right prong.


Last edited by Boyd Birchler : 08-07-2018 at 09:07 AM.
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Old 08-04-2018, 08:27 AM
Boyd Birchler Boyd Birchler is offline
Join Date: Sep 2014
Location: IN
Posts: 158

I managed to find the answers to my questions. Only the high beams are lit for our use. The H4 / 9003 plug when held so the prongs are pointing at your face, center prong up: left prong is negative, positive to center prong Up is low beam,positive to right prong is high beam.

The metal mount plate is removable by a simple twist and pull if that is a factor. I'll give more detailed info when I install.

Last edited by Boyd Birchler : 08-04-2018 at 04:38 PM.
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Old 08-06-2018, 08:32 AM
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smokyray smokyray is offline
Join Date: Jan 2005
Location: TX32
Posts: 1,731
Default See the Light...

Thanks for the informative posts.
My RV4 and RVX have Bob Olds landing lights which use good old WalMart Square plastic automotive halogen headlights. The originals still work after 20+ years probably due to limited use. (Night flying for sport isn't as appealing when you spent 24 years doing it with NVG's. )
Installing LED's will take a bit of engineering however, I've already added them to my favorites list on Amazon...


PS:Now, how do I R&R the old school yellow DRL's on my Toyota Tacoma for some LED's?

Last edited by smokyray : 08-06-2018 at 08:38 AM.
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Old 08-07-2018, 08:11 AM
Boyd Birchler Boyd Birchler is offline
Join Date: Sep 2014
Location: IN
Posts: 158
Default Hikari LED H4 bulbs

I bought the Hikari H4/9003 LED bulbs. I find out my reflector housing is for H3 halogen bulbs that have a much smaller mount ring that is attached by a screw. I have looked through Duck Works stuff on line and it appears all of their reflectors are designed to take H3 bulbs. Where did your reflectors come from?

Last edited by Boyd Birchler : 08-07-2018 at 09:00 AM.
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Old 08-07-2018, 08:35 AM
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Veetail88 Veetail88 is offline
Join Date: Oct 2008
Location: Hales Corners, WI
Posts: 864

Originally Posted by daddyman View Post

This breaks one of my big airplane rules- DO NOT FIX IF IT ISN'T BROKEN.

You're not fixing anything here, you're simply upgrading. But I like the sentiment. I think I need to tell my wife I need to "Fix" my instrument panel!
Jesse Bentley
N229Z - RV-8 - Flying - Livin' the dream!
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