There are kajillions of styles of 1156 LED bulbs. Suggesting that there are none that provide more light than an incandescent 1156 is absurd.
Not to be argumentive, but please share your source for the LED bulbs which produce more light than an incandescent 1156 bulb.
I did some extensive research back when Mobile HID became an advertiser, and found them (LED bulbs) to be an immature technology.
A typical incandescent 1156 bulb drawing 29.5 watts produces around 402 lumens.
I came up with the brightest available 1156 based LED producing around 265 lumens at like 3 watts, I think.
On top of that, the members who have installed 1156 based LEDs in place of incandescents have failed to post any evidence they illuminate the area in front of the tractor as well as the incandescents. Sure LEDs when viewed from head on sure look brighter, but they don't do much from the seat of the tractor.
Maybe in a few years the technology will improve, and the bulbs will come with diffusers to exploit the reflectors into which the bulbs mount, but I just don't see them yet.
I do own several LED flashlights, and none of them are much good at night.