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Plus or minus 6 volt headlight bulbs!
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BigGuy1000 View Drop Down
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Joined: 06 Dec 2013
Location: NWIL
Points: 122 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BigGuy1000 Quote  Post ReplyReply Direct Link To This Post Topic: Plus or minus 6 volt headlight bulbs!
    Posted: 12 Jan 2025 at 2:57pm
I have found after much searching and ordering of parts that do not work, 6 volt single contact bayonet socket light bulbs (Headlights, used in many older Allis tractors and green and red too)that will fit and work with either + or - ground!!!  AND they have much better light output too!!!  Really makes it much better to  work at night with my 1951 AC WD!  Will work on ANY older 6 volt tractor!
On EBAY....
But be careful to get only the bulbs with the above ebay number as I found out by ordering many that do not work !  It is too easy to get many others that do not work!!
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Steve in NJ View Drop Down
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Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11883 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2025 at 5:10pm
Another thing that is almost always overlooked to get a brighter light when running the 6 volt system is the Headlight reflectors. You'll be a bit surprised how much brighter the Headlights are when new reflectors are installed.  Thumbs Up
Steve@B&B
39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
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Points: 82226 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2025 at 6:16pm
many LED lights are POLARITY sensitive.. Thats probably why they dont work on a POSITIVE GROUND 6v system.
Like them all, but love the "B"s.
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jvin248 View Drop Down
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Joined: 17 Jan 2022
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Points: 355 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jvin248 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2025 at 9:44pm
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Thanks!  I'll have to order some for my WD.

I put LEDs in it that were supposed to be ok on pos ground 6v but they didn't work. So I keep thinking of going 12v neg.

.
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jaybmiller View Drop Down
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Joined: 12 Sep 2009
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Points: 22931 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jaybmiller Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2025 at 9:53pm
All  'LEDs' are polarity sensitive but what that light is, is probably a 'module' consisting of a full wave bridge rectifier ( 4 diode) that powers a constant current device that then powers the LEDs.
Did that 'trick' 4-5 decades ago, had some $$$$ new style track lighting LEDs($300 a unit) did the same. They worked on 12 V AC, still have the $$$$ transformers here.

BTW when you run LEDs in their native constant current mode you can get them to smoooooothly go dim, go bright and will last longer.

I changed all my 6 volt tractors to 12 , negative ground so I didn't have to see sparks fly when boosting..... Also going 12 , used cheap(yeah, free) CS130 alternators. Gennys are great IF you run tractors for 4-5 hours minimum a day but my use was 'short trips'.
3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water
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PaulB View Drop Down
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Joined: 12 Sep 2009
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Points: 4822 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2025 at 9:38am
I have gotten many 6volt +/- LED bulbs from AMOZON. You just have to read into the specifications far enough to find out if they are or are not polarity sensitive. It is also nice to know if the do not interfere with FM radio reception. I have found some that will really mess up radio reception. 
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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HoughMade View Drop Down
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Joined: 22 Sep 2017
Location: Valparaiso, IN
Points: 700 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HoughMade Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2025 at 1:06pm
The add says the color temperature is 6000k.  Are these bulbs more like bluish white like modern headlights?
1951 B
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Alberta Phil View Drop Down
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Joined: 13 Sep 2009
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Points: 3833 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Alberta Phil Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2025 at 4:43pm
This is the type I run in all my 6 volt Allis tractor lights  It is an 1133 single contact headlight bulb and is rated at 32 candle power.  It throws a lot more light than the smaller bulbs used for turn and brake lights.  Most of mine also have new or very good reflectors and I have good lights for night driving. 


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jvin248 View Drop Down
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Joined: 17 Jan 2022
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Points: 355 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jvin248 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2025 at 10:26pm
Originally posted by HoughMade HoughMade wrote:

The add says the color temperature is 6000k.  Are these bulbs more like bluish white like modern headlights?


Yes, 6k are blue white
3k are yellow like old filament bulbs.

Candle power is brightness.

.
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jvin248 View Drop Down
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Joined: 17 Jan 2022
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Points: 355 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jvin248 Quote  Post ReplyReply Direct Link To This Post Posted: 15 hours 35 minutes ago at 2:27pm
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I found the same bulb on Amazon.
# B0DKFDBHG6
that's a zero not oh.

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JoeM(GA) View Drop Down
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Joined: 12 Sep 2009
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Points: 4700 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JoeM(GA) Quote  Post ReplyReply Direct Link To This Post Posted: 14 hours 8 minutes ago at 3:54pm

and here's the LED bulb for the #1133 bulb used in most of the early style headlights
Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB
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