I just changed every bulb on the entire tractor to LED'S.
All came from AMAZON.
Red Tail Lights, makes a noticeable difference.
AUXITO 194 LED Bulbs 168 175 2825 W5W T10 24-SMD 3014 Chipsets 6000K White for Car Dome Map Door Courtesy License Plate Lights Pack of 2
$9.99
Link
https://www.amazon.com/gp/product/B072JLWGQX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Orange Side Flashing / Hazard lights, makes a HUGE difference, you can see then much farther away!
ANTLINE Extremely Bright 1156 1141 1003 7506 BA15S 21-SMD 2835 Chipsets 1260 Lumens LED Bulb Replacement White for Car RV Interior Backup Reverse Brake Tail Turn Signal Lights Bulbs DRL (Pack of 4)
$16.99
Link
https://www.amazon.com/gp/product/B07P5ND9WF/ref=ppx_od_dt_b_asin_title_s02?ie=UTF8&psc=1
Head Lights, these are very bright, much brighter than stock and a white type of light.
Be careful of what you get because only some will fit.
The below links fit perfectly in the small housing.
KATUR 881 LED Fog Light Bulbs Extremely Bright 2400 Lumens Max 75W High Power LED for Daytime Running Light DRL or Fog Lights, Xenon White (881 White)
$15.99
Link
https://www.amazon.com/gp/product/B07KTVXYG3/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Hope this helps!