I source ALL my LED lamps and bulbs from SuperbrightLED.com One thing to keep in mind and that is, most LED lights don't produce any operating heat so when used with snow removal, the chances of them loading with snow and diminished light output are great. One thing about Superbright and that is, they prefer to sell CREE SMD's and Cree is quality, unlike the generic Amascon junk.
Been purchasing from them for years with no bad products.