Canopy LED light replacement for cab M7040 of other

   / LED light replacement for cab M7040 of other #1  

carlhwv

Silver Member
Joined
Apr 27, 2016
Messages
132
Location
Frederick MD - soon Seymour TN
Tractor
Kubota M7040HDC
While we have the tractor in the bay while the bottom plate is getting wrapped up, I’m going through the list and seeing what else I can get ticked off before the flakes start flying.

Going to replace the 4 40watt spots, the 2 on the front and the two on the back the cab. Has anyone made this swap and if so what did you go with? With the brackets and wires already in place it’s going to be an easy swap. There are actually too many options.....;).
 
   / LED light replacement for cab M7040 of other #2  
I noticed another thread someone replacing the bulbs with led bulbs. I assume you are swapping the housing? I’ll be curious what others say. I have an L60 on order and thought it was crummy that they didn’t offer and LED upgrade, or just been all LEDs standard.
 
   / LED light replacement for cab M7040 of other
  • Thread Starter
#3  
My explanation of which lights might have been off. I’m looking to replace th entire assembly of the two lights at the top. IMG_1105.JPG
 
   / LED light replacement for cab M7040 of other #4  
Carlhwv,

I used something similar to this on my L4740 cab tractor. Amazon.com: Nilight Led Light Bar 2PCS 36w 6.5Inch Flood Led Off Road Lights Super Bright Driving Fog Light Boat Lights Driving Lights Led Work Light SUV Jeep Lamp,2 Years Warranty: Automotive

They are very close in size and put out 5x the light (They are really bright and have greater coverage than stock lights). Soldered the old electrical connectors to the LED lights making it plug and play. Did have to make a small adapter piece using 1/8" x 1" flat bar about 2 to 3" long given the difference in mounting position between the two style of lights. For under $35 I'm very please with their performance and relative simplicity of adding to tractor. If you're interested in some info of my install it can be found here. http://www.tractorbynet.com/forums/kubota-owning-operating/383539-cab-work-lights-changed-over.html?highlight=

Also mounted a similar set to a B3030 cab tractor with similar results.

FYI... All of these LED's seem to overrate the current draw so you'll be saving considerable electrical load versus halogens. These 36 watt lights only use 2.06 amps per light at 12.6 supply voltage.

Happy Thanksgiving!
 
   / LED light replacement for cab M7040 of other
  • Thread Starter
#5  
Thanks Moship. I was wondering what kind of draw to expect. I thought it would be less, but not that much less. Brighter is good, but increased
field of coverage is what I’m really looking for. They even sell a 4 pack....:).

Happy Thanksgiving to you and everyone else reading as well.
 
   / LED light replacement for cab M7040 of other #6  
My cheap chinese LED light bars pull around half the advertised wastage & are noisy (1 kills the radio, other causes a bit of static). But you can't beat the light output.

I went WAY overkill on the wiring even based on the claimed specs. But im happy with my setup (after the rear bracket repair & upgrade) & the future expansion options for more electronics or lights later. You might be able to squeeze some smaller bars onto the stock wiring.

Not sure how close the cab on you M is to my Grand L but feel free to poach my install guide. http://www.tractorbynet.com/forums/customization/376458-let-there-light-l4060-light.html
 
   / LED light replacement for cab M7040 of other
  • Thread Starter
#7  
My cheap chinese LED light bars pull around half the advertised wastage & are noisy (1 kills the radio, other causes a bit of static). But you can't beat the light output.

I went WAY overkill on the wiring even based on the claimed specs. But im happy with my setup (after the rear bracket repair & upgrade) & the future expansion options for more electronics or lights later. You might be able to squeeze some smaller bars onto the stock wiring.

Not sure how close the cab on you M is to my Grand L but feel free to poach my install guide. http://www.tractorbynet.com/forums/customization/376458-let-there-light-l4060-light.html

Thanks for sharing your setup. I think it’s a bit more than what I want to take on for what I need right now but it definitely gives me another option of a true light bar.
 
   / LED light replacement for cab M7040 of other
  • Thread Starter
#8  
FYI... All of these LED's seem to overrate the current draw so you'll be saving considerable electrical load versus halogens. These 36 watt lights only use 2.06 amps per light at 12.6 supply voltage.

Happy Thanksgiving!

Is yours a 10 or 20amp circuit? I think all LED lights are rated strange. No direct experience with the tractor but anywhere else I’ve used them, they all seem to draw less than than their same incandescent or halogen. I’m thinking of getting a set of the 72 ‘watt’ and seeing what they draw. My light circuit is 20amps
 
   / LED light replacement for cab M7040 of other #9  
Is yours a 10 or 20amp circuit? I think all LED lights are rated strange. No direct experience with the tractor but anywhere else I’ve used them, they all seem to draw less than than their same incandescent or halogen. I’m thinking of getting a set of the 72 ‘watt’ and seeing what they draw. My light circuit is 20amps

I'm not certain what the stock circuits are fused/rated at for the front and rear cab lights. I'll have to look when I'm around the tractor again. Considering I'm only using 40% of what the stock lights consumed, there was no concern.

I'm guessing your 72 Watt lamps will draw a total of 4.1 watts. These ratings are likely coming from the max rating of an individual led within the housing. When running at 100% of rating they might have a problem dissipating the heat. Reduce the current slightly and it likely prolongs their life and/or makes it easier to design the heat sink.
 
   / LED light replacement for cab M7040 of other
  • Thread Starter
#10  
I'm not certain what the stock circuits are fused/rated at for the front and rear cab lights. I'll have to look when I'm around the tractor again. Considering I'm only using 40% of what the stock lights consumed, there was no concern.

I'm guessing your 72 Watt lamps will draw a total of 4.1 watts. These ratings are likely coming from the max rating of an individual led within the housing. When running at 100% of rating they might have a problem dissipating the heat. Reduce the current slightly and it likely prolongs their life and/or makes it easier to design the heat sink.

I ended up putting the 36W and I see just over 2 amp draw when they are on. They were a direct pop off pop on fit. They are floods and light up the work area amazingly. Still if I had to do it again I think I’d get the 72W spot/flood combo, just because. I’m going to use these for a storm or two and see if they are worth changing out. I put them on the rear as well. They are perfect there.
 
   / LED light replacement for cab M7040 of other #11  
Carlhwv,

Thanks for posting what you did. It will be interesting to get your impression after you use them a while.
 
   / LED light replacement for cab M7040 of other #12  
   / LED light replacement for cab M7040 of other
  • Thread Starter
#13  
For the M7040, give yourself a present with a LED conversion for the inside cab roof light.

Remove the bulb and the adapter goes into the bulb contacts to power a rectangular array of small leds which remain inside the light lens.

When you open the cab door in the winter, having the bright light is sure nice.

OZ-USA(R) Dome LED 48 T1 BA15S 12V Bulb Light Panel Conversion Kit | eBay

Less than $10

Dave M7040

$4.99, with free shipping. Thanks Dave. I quit trying to figure the weather out any more...I just know it was really cold for MD. Received the LEDs and install took 1 minute..everything required was included. I can actually see things on the floor of the cab at night. Get inexpensive upgrade.
 
   / LED light replacement for cab M7040 of other #14  
$4.99, with free shipping. Thanks Dave. I quit trying to figure the weather out any more...I just know it was really cold for MD. Received the LEDs and install took 1 minute..everything required was included. I can actually see things on the floor of the cab at night. Get inexpensive upgrade.

I bought the same LED for the dome and was wondering how you mounted the LED inside the housing? There isn't a flat spot to mount using the 2-Sided tape. Did you just lay it inside the dome cover?

Perhaps the photos will help describe the situation.

IMG_0118.JPG


Sorry for the flipped picture below.
IMG_0121.JPG
 
   / LED light replacement for cab M7040 of other
  • Thread Starter
#15  
I bought the same LED for the dome and was wondering how you mounted the LED inside the housing? There isn't a flat spot to mount using the 2-Sided tape. Did you just lay it inside the dome cover?

Perhaps the photos will help describe the situation.

View attachment 537436



View attachment 537437

It is the right size to just lay inside the dome cover. I知 not sure how hot it would get if I leave it on a long time, but I tested it for a few minutes before I put it together with no issue. It amazing how bright these LEDs are.

While it痴 sure been cold, we haven稚 gotten enough snow to put the work light to use. Still, I致e run it a bit at night to check it out and compared to the 40w lights replaced, the 36w LEDs are so much brighter, there really is no comparison. I highly suggest these to anyone who want enough light to actually work at night. Mine are floods....they make a flood/spot combination that is well under the 20amp draw the circuit is built on. This is the single best straight bolt on replacement mod I have ever done. The entire job took less than 30 minutes from unpacking the new lights to final cleanup, and that including soldering and heat shrinking the weather tubing on the connections.
 
   / LED light replacement for cab M7040 of other #16  
It is the right size to just lay inside the dome cover. I知 not sure how hot it would get if I leave it on a long time, but I tested it for a few minutes before I put it together with no issue. It amazing how bright these LEDs are.

While it痴 sure been cold, we haven稚 gotten enough snow to put the work light to use. Still, I致e run it a bit at night to check it out and compared to the 40w lights replaced, the 36w LEDs are so much brighter, there really is no comparison. I highly suggest these to anyone who want enough light to actually work at night. Mine are floods....they make a flood/spot combination that is well under the 20amp draw the circuit is built on. This is the single best straight bolt on replacement mod I have ever done. The entire job took less than 30 minutes from unpacking the new lights to final cleanup, and that including soldering and heat shrinking the weather tubing on the connections.

No heat problem with LED dome light. Mine just rests on the original lens.

I had tried various LED models on my car but was very happy when the conversion you and I both have in our tractors performs.

Some people have had flicker problems with larger LED lamps. I suspect there are many levels of quality.

Some early Kubota's and garden tractors used alternating current for their lamps and only rectified a portion of the charging system output to look after the battery.

Conversions to LED's in this situation is unsuccessful.

Dave M7040
 
   / LED light replacement for cab M7040 of other #17  
Here's a quick test of the stock bulb versus the LED module described in earlier posts. The light cover was not in place for any of the photos.

Stock Light

IMG_0123.JPG IMG_0127.JPG

LED

IMG_0131.JPG IMG_0129.JPG


With the way camera phones try to adjust the picture given the ambient lighting, I feel the photos understate the true difference and the LED's are way brighter.
 

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