I did see a change in light output with a change in current but as you said they are plenty bright and more current will make the heat problem worse.
the incandescents are 5 amps calculated ( 6v 30 watt .) This set up is ~1/2 the current more than twice the light and better color range. nice.
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LED Headlight Bulbs
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- 5+ Years
- Posts: 2803
- Joined: Wed Jul 08, 2015 10:24 am
- Zip Code: 19342
- Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide - Circle of Safety: Y
- Location: Glen Mills PA
Re: LED Headlight Bulbs
When you only have 9 horsepower you need to know the names of all of the ponies!
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- Team Cub
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Re: LED Headlight Bulbs
Urbish wrote:The boost converter gets pretty hot (designed to do so).
How hot is hot? You may be able to attach it to the inside of the headlight shell so the shell acts somewhat as a heat sink. You might be able to mount it under the hood, above/beside the radiator shroud. Unfortunately, you would need to expect anywhere near the radiator to be a 200 or so degree environment which may be too hot for the device.
Inside the headlight housing is a pretty safe place for water protection. Unfortunately, nearly anywhere else on the tractor isn't as well protected and you need to deal with weatherproofing the device.
I'm sure you are already thinking about all this.
- Urbish
- 10+ Years
- Posts: 2427
- Joined: Sat Sep 07, 2013 3:45 pm
- Zip Code: 48158
- Tractors Owned: ~
1958 International Cub LoBoy
1947 Farmall H
1946 Farmall B
1953 Willys CJ3B
2022 Massey Ferguson GC1723E Subcompact
Cub Loboy L-54 Leveling and Grader Blade - Circle of Safety: Y
- Location: Manchester, MI
Re: LED Headlight Bulbs
I have the aftermarket rubber headlight housings, so they won't transmit very much heat. Maybe I can tuck them between the grille screen and the radiator. At least that way they will be bathed in a flow of 'cool' air. I have some heat-sinks that I can attach to the MOSFET on each board. I think I'll design and 3D print some enclosures that allow the heat sink to stick out, and caulk all the seams to keep moisture out.
Jim
- Urbish
- 10+ Years
- Posts: 2427
- Joined: Sat Sep 07, 2013 3:45 pm
- Zip Code: 48158
- Tractors Owned: ~
1958 International Cub LoBoy
1947 Farmall H
1946 Farmall B
1953 Willys CJ3B
2022 Massey Ferguson GC1723E Subcompact
Cub Loboy L-54 Leveling and Grader Blade - Circle of Safety: Y
- Location: Manchester, MI
Re: LED Headlight Bulbs
It appears that this approach will be a bust. Between the heat being given off by the LED light and how hot the boost converter gets, there's no way any of this will last sealed up in the headlight housing without having a meltdown. The lights are great, but I'm going to go with a more expensive 6V to 12V converter that can be mounted further up the line and is sealed against the elements. This one looks like it might be a winner, and can power both lights: https://www.amazon.com/DIGITEN-Converter-Regulator-Waterproof-Module/dp/B019GY2FLW
Jim
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- 5+ Years
- Posts: 2803
- Joined: Wed Jul 08, 2015 10:24 am
- Zip Code: 19342
- Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide - Circle of Safety: Y
- Location: Glen Mills PA
Re: LED Headlight Bulbs
that one does not also reverses polarity and the larsens do not work reversed
this one steps up and revereses.
http://www.ebay.com/itm/232425795073
this one steps up and revereses.
http://www.ebay.com/itm/232425795073
When you only have 9 horsepower you need to know the names of all of the ponies!
- Urbish
- 10+ Years
- Posts: 2427
- Joined: Sat Sep 07, 2013 3:45 pm
- Zip Code: 48158
- Tractors Owned: ~
1958 International Cub LoBoy
1947 Farmall H
1946 Farmall B
1953 Willys CJ3B
2022 Massey Ferguson GC1723E Subcompact
Cub Loboy L-54 Leveling and Grader Blade - Circle of Safety: Y
- Location: Manchester, MI
Re: LED Headlight Bulbs
As long as there are four wires coming out of it, all I have to do to reverse polarity is connect the red wire to ground instead of the black.
Jim
- Urbish
- 10+ Years
- Posts: 2427
- Joined: Sat Sep 07, 2013 3:45 pm
- Zip Code: 48158
- Tractors Owned: ~
1958 International Cub LoBoy
1947 Farmall H
1946 Farmall B
1953 Willys CJ3B
2022 Massey Ferguson GC1723E Subcompact
Cub Loboy L-54 Leveling and Grader Blade - Circle of Safety: Y
- Location: Manchester, MI
Re: LED Headlight Bulbs
I finally finished up with the wiring on these. They work GREAT! I can illuminate the house from 300'.
Here's the 6V to 12V converter I ended up with.
$28.99 from Amazon.com https://www.amazon.com/DIGITEN-Converter-Regulator-Waterproof-Module/dp/B019GY2FLW
The tractor is 6V positive ground. On the input side, I connected the positive to ground and the negative to the headlight out terminal on the rotary switch. On the output side, I connected the negative wire to the existing headlight wire running to the front and ran a new wire for the positive with a Y-splice near the radiator to follow the existing wiring harness. I 3D printed a mount for the converter that uses two #8-32 pan head screws to mount (using hex shaped pockets in the mount to capture the hex nuts). The mount attaches by using longer bolts where the dash attaches to the clutch housing.
Note, you cannot share a common ground with this converter (by connecting the black leads together and attaching them to ground). This converter achieves the step-up in voltage by sending high frequency pulses of 12V to the output leads. Joining the grounds goofs up the high speed switching. EDIT: This means that the wiring forward of the converter needs to be completely isolated from the chassis of the tractor.
Interestingly enough, using the lights on the "low" setting of the rotary switch causes the headlights to strobe at about 10 flashes per second. I imagine that doing this too long will burn something up. I think I'll remove the resistor wire at the rotary switch so that "low" has no function whatsoever.
All in all, I'm very happy with the result.
Here's the 6V to 12V converter I ended up with.
$28.99 from Amazon.com https://www.amazon.com/DIGITEN-Converter-Regulator-Waterproof-Module/dp/B019GY2FLW
The tractor is 6V positive ground. On the input side, I connected the positive to ground and the negative to the headlight out terminal on the rotary switch. On the output side, I connected the negative wire to the existing headlight wire running to the front and ran a new wire for the positive with a Y-splice near the radiator to follow the existing wiring harness. I 3D printed a mount for the converter that uses two #8-32 pan head screws to mount (using hex shaped pockets in the mount to capture the hex nuts). The mount attaches by using longer bolts where the dash attaches to the clutch housing.
Note, you cannot share a common ground with this converter (by connecting the black leads together and attaching them to ground). This converter achieves the step-up in voltage by sending high frequency pulses of 12V to the output leads. Joining the grounds goofs up the high speed switching. EDIT: This means that the wiring forward of the converter needs to be completely isolated from the chassis of the tractor.
Interestingly enough, using the lights on the "low" setting of the rotary switch causes the headlights to strobe at about 10 flashes per second. I imagine that doing this too long will burn something up. I think I'll remove the resistor wire at the rotary switch so that "low" has no function whatsoever.
All in all, I'm very happy with the result.
Last edited by Urbish on Wed Aug 16, 2017 1:50 pm, edited 1 time in total.
Jim
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- Team Cub
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- Joined: Sun Feb 02, 2003 2:59 pm
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Re: LED Headlight Bulbs
Looks good. You got it accomplished for a tolerable price. I read your output wiring description that you have to totally isolate it from the rest of the tractor -- just one wire to each side of the lamp and no ground connection.
You could jumper the resistor wire on the switch so Low becomes the same as High. You could feed your converter from the rear light terminal of the switch. That would also feed the full 6 volts to the converter in both the L and H positions.
You could jumper the resistor wire on the switch so Low becomes the same as High. You could feed your converter from the rear light terminal of the switch. That would also feed the full 6 volts to the converter in both the L and H positions.
- Urbish
- 10+ Years
- Posts: 2427
- Joined: Sat Sep 07, 2013 3:45 pm
- Zip Code: 48158
- Tractors Owned: ~
1958 International Cub LoBoy
1947 Farmall H
1946 Farmall B
1953 Willys CJ3B
2022 Massey Ferguson GC1723E Subcompact
Cub Loboy L-54 Leveling and Grader Blade - Circle of Safety: Y
- Location: Manchester, MI
Re: LED Headlight Bulbs
Jim Becker wrote:I read your output wiring description that you have to totally isolate it from the rest of the tractor -- just one wire to each side of the lamp and no ground connection.
Yes, the headlights are on their own circuit directly back to the converter, completely isolated from the rest of the tractor
Jim Becker wrote: You could jumper the resistor wire on the switch so Low becomes the same as High. You could feed your converter from the rear light terminal of the switch. That would also feed the full 6 volts to the converter in both the L and H positions.
Good suggestions and easy enough to do any of them. Hardest part was trying to do the wiring without removing the hood. Once I bit the bullet and removed the hood, the rest was a piece of cake.
Jim
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- Team Cub
- Posts: 17214
- Joined: Sun Feb 02, 2003 2:59 pm
- Zip Code: 55319
- Circle of Safety: Y
- Location: MN
Re: LED Headlight Bulbs
If you'd had a Touch-Control system, the part behind the panel would have been difficult even with the hood off.
- Urbish
- 10+ Years
- Posts: 2427
- Joined: Sat Sep 07, 2013 3:45 pm
- Zip Code: 48158
- Tractors Owned: ~
1958 International Cub LoBoy
1947 Farmall H
1946 Farmall B
1953 Willys CJ3B
2022 Massey Ferguson GC1723E Subcompact
Cub Loboy L-54 Leveling and Grader Blade - Circle of Safety: Y
- Location: Manchester, MI
Re: LED Headlight Bulbs
If there is interest, I can make the adapter available to order from Shapeways.com. Maybe I can design up another one that is compatible with the touch control too.
Jim
-
- 5+ Years
- Posts: 2803
- Joined: Wed Jul 08, 2015 10:24 am
- Zip Code: 19342
- Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide - Circle of Safety: Y
- Location: Glen Mills PA
Re: LED Headlight Bulbs
nice job
When you only have 9 horsepower you need to know the names of all of the ponies!
- Urbish
- 10+ Years
- Posts: 2427
- Joined: Sat Sep 07, 2013 3:45 pm
- Zip Code: 48158
- Tractors Owned: ~
1958 International Cub LoBoy
1947 Farmall H
1946 Farmall B
1953 Willys CJ3B
2022 Massey Ferguson GC1723E Subcompact
Cub Loboy L-54 Leveling and Grader Blade - Circle of Safety: Y
- Location: Manchester, MI
Re: LED Headlight Bulbs
In case it's helpful to anybody, here is a wiring diagram for the Larsen LED headlights with the 6V to 12V converter. It is a very simple install from a wiring standpoint:
Jim
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