L2900 Headlight Replacements? (LED)

[srr5008]

Does anyone know if there is drop in LED replacement headlight bulb for the L Series tractors? I've seen older threads where people asked but didn't get a solid answer... Was wondering if anyone ever found a solution? The bulbs have a flange around the base and they seem to be A-3603 bulbs that are also used in snowmobiles and motorcycles. But I haven't found an LED replacement yet.

 

[Greenfield Dave]

Does anyone know if there is drop in LED replacement headlight bulb for the L Series tractors? I've seen older threads where people asked but didn't get a solid answer... Was wondering if anyone ever found a solution? The bulbs have a flange around the base and they seem to be A-3603 bulbs that are also used in snowmobiles and motorcycles. But I haven't found an LED replacement yet.

I've looked online recently for LED lights for my L4400 and have had no luck. There were some that said they would work, but the photos didn't match up at all. Buyer beware! Seems the Chinese are dumping loads of bulbs on the market with no idea whether they will work.
I'd love to have some that did though
Please post if you find some.

 

[srr5008]

Just wanted to give everyone a quick update on the LED headlights for anyone else that was looking to replace their A-3603 bulbs. After doing some research, I found that the A-3603 bulbs have a P1525d base, which is also shared by the T19 bulbs. I was able to find many LED T19s on ebay, shipping from China with a 3-4 week wait. I found one company in California that carried LED T19's and they work great! Here is a link to the bulbs:

LED Light Bulb 8W 5K White P15d-25-1 P15d25-1 M5 T19 PX15d

I tried taking some pictures to illustrate the difference, but my camera didn't do the lights justice. I would estimate that they are 4-5 times brighter than the stock bulbs and I can see probably twice as far ahead of my tractor.

 

[ryan08]

Wow...80 watts is a lot of draw for a tractor it seems. Do you know what the stock lights were? Just wondering if the wires/alternator are up to the task? Did you see if the wires got hot after using the bulbs?

 

[srr5008]

I totally blanked when I ordered these... didn't even think to look at the wattage (since the ebay versions were comparable to what I had). Stock bulbs were 25 watts. Looks like these will have to come out and it's back to the drawing board. Glad you caught that!

 

[srr5008]

This is in the ballpark of what I should have ordered... looks like I'll have to bite the bullet and wait a couple weeks for them to arrive from China. Sorry for the confusion all, but at least people know what base to look for.

P15D-25-1 T19 3W LED 21LM 65K for Car Turn Daytime Running Fog Light K4P | eBay

 

[Greenfield Dave]

This is in the ballpark of what I should have ordered... looks like I'll have to bite the bullet and wait a couple weeks for them to arrive from China. Sorry for the confusion all, but at least people know what base to look for.

P15D-25-1 T19 3W LED 21LM 65K for Car Turn Daytime Running Fog Light K4P | eBay

Good work tracking them down!! I looked on Amazon, and they all come from China. I agree 80W might be too much, heck it might melt the lenses.
Thanks for your hard work!

 

[msb1766]

Here they are from Amazon:
Amazon.com: Genssi Elite 1W White H6m 723 LED 12V ATV Scooter LED Lamp Headlight Light Bulbs (Pack of 2): Automotive

I bought them for my Sc2450 Cub / Yanmar tractor. they are really bright. Had them in for about a year.
View attachment 487925

 

[srr5008]

Any concerns with them being a higher wattage than the stock bulbs? (50w vs 25w)?

 

[aczlan]

Any concerns with them being a higher wattage than the stock bulbs? (50w vs 25w)?

I wouldn't worry about heat as the stock bulb has two 25w elements (25w high and 25w low), not sure about the wiring.

Aaron Z

 

[msb1766]

No, with LED bulbs the wattage is high but its the amp draw is really low.
I have changed out all the incandesent bulbs on the tractor. before I changed out all the bulbs when I turned on all the lights the rpm of the engine would
jump a little due to the amp draw on the alternator., now it does not do it.

Here is a link to that post:http://www.tractorbynet.com/forums/yanmar-new/356265-incandescent-led-bulbs.html

 

[dickfoster]

No, with LED bulbs the wattage is high but its the amp draw is really low.
I have changed out all the incandesent bulbs on the tractor. before I changed out all the bulbs when I turned on all the lights the rpm of the engine would
jump a little due to the amp draw on the alternator., now it does not do it.

Here is a link to that post:http://www.tractorbynet.com/forums/yanmar-new/356265-incandescent-led-bulbs.html

Actually the wattage is also low, it's the output in lumens per watt of power or the efficiency that makes LEDs the hot ticket they are. Even a 5 watt LED puts out a heap of light. P=EI or Watts = voltage times current but operating voltage is also very low for LEDs.

 

[srr5008]

I actually contacted an LED bulb supplier about 50W bulbs and this is what he said:


"The 50w leds only draw about 7 watts of power, so they will be far less draw than your present bulbs and stay cool to the touch when lit.

Explanation:

The led wattage is the max wattage rated of the leds in the bulb when driven at full power. Leds must remain cool when lit or they will fail, so high powered leds when driven at full rated power require massive heat sinks in order to draw the heat away from the leds. The P15d25-1 bulb is not large enough to fit a 50w heat sink, so to compensate, they must be driven at a reduced wattage to assure the leds do not overheat.

50 watts of leds at full power would produce more light than the brightest street lights, but that would require a heat sink as large as the largest street lights."

I think I'm going to get a multimeter on my 80W bulbs this weekend and see what they are actually drawing before ordering replacements.