LED replacement bulbs?

Red Mercury · Nov 23, 2013

Forgive me if this topic has already been covered many times--I did a search and found lots of similar topics.....

I would like to replace the light bulbs in my WD-9 with some higher output LED bulbs. There are many different ones available so it is really hard to tell which ones are the best ones. Has anyone replaced the light bulbs in their old Farmall/McCormick with modern LED bulbs? What is the best kind to buy?

Janicholson · Nov 23, 2013

This is typical of the style. Many sources, make sure it will handle up to 15 volts. Also be sure the bayonet is correct for your socket. Jim
this is one source

Janicholson · Nov 23, 2013

The link didn't work. Here is a working one
USA light

Brian Schmidt · Nov 23, 2013

These won't work on 6V though. You would need to convert the tractor to 12V.

Bob M · Nov 23, 2013

AFIK the WD-9 is 12 volts from the factory. So converting to 12 volts will not be an issue.

However from the factory the was WD-9 positive ground. That WILL be an issue as most (all?) LED conversion lamps are neg ground.

Incidentally changing a generator-equipped tractor from positive to neg ground is not a big deal, and no new parts required.

john *.?-!.* cub owner · Nov 23, 2013

check with superbrightleds.com, they have a large variety, some of which will work with either polarity.

Red Mercury · Nov 23, 2013

(quoted from post at 03:00:11 11/24/13) AFIK the WD-9 is 12 volts from the factory. So converting to 12 volts will not be an issue.

However from the factory the was WD-9 positive ground. That WILL be an issue as most (all?) LED conversion lamps are neg ground.

Incidentally changing a generator-equipped tractor from positive to neg ground is not a big deal, and no new parts required.

Good point, the WD-9 is a 12 volt, positive ground system from the factory. I would prefer not to change that, if possible. Diodes (LED's) only work one way. One of the other posters mentioned a dual polarity LED bulb from Superbright, I will look into it. I can't figure out how that can be, but the world is full of people who are smarter than me!

Jim Becker · Nov 23, 2013

(quoted from post at 23:35:08 11/23/13)One of the other posters mentioned a dual polarity LED bulb from Superbright, I will look into it. I can't figure out how that can be, but the world is full of people who are smarter than me!

I can think of 2 ways to do it.

1) Put a bridge rectifier circuit in front of the LED (requires 4 diodes).
2) Put 2 sets of LEDs in the bulb, one for each polarity.

I imagine option 1 would cost less and fit better in the space available.

FBH44 · Nov 24, 2013

A couple years ago I installed two LED bulbs in a grey electrical junction box, duct-taped and wire-tied onto the front air cleaner housing on my Troy-Bilt lawn mower, works wonderful, lights up the night. Uses the same light circuit for the front lights that fell off long time ago. No idea how I did it, just did it. Works great.

LED replacement bulbs?

Red Mercury

Member

Janicholson

Well-known Member

Janicholson

Well-known Member

Brian Schmidt

Member

Bob M

Well-known Member

john .?-!. cub owner

Well-known Member

Red Mercury

Member

Jim Becker

Well-known Member

FBH44

Well-known Member

Similar threads