M4 has good products, also check out superbrightleds.com for your dimmer switch.
Not all LED replacements can be dimmed, and often I've seen simple resistive dimmers (eBay and Amazon) barely work at all. LED prefer something called PWM dimming, in simple terms the lights flash on and off so fast they appear to dim.
2013 KZ Sportsmen Classic 200, 20 ft TT
2020 RAM 1500, 5.7 4x4, 8 speed