Review on HOTSYSTEM 881 H27W/2 LED Light Bulbs: Super Bright Fog Driving DRL Daytime Running Lights (White, 2-pack) by Josh Hamler

unfortunately not bright at all. They make about the same light as a turn signal bulb, not even close to fog lights or ATV/tractor/work lights. hot! These lamps use most of their energy by producing heat and very little light. The heat is great for people who see a lot of snow/ice as it warms up the property a bit and keeps it from freezing. This is not an intended feature of these lamps, but simply a by-product of poor design and cheap manufacture. Don't be fooled by the videos or pictures of these lamps. They do NOT produce enough light. Much smaller than traditional incandescent bulbs of the same size/type. I say don't be fooled because the color of light can be deceiving. They are very blue (6500-7500k) which can appear lighter than their counterparts in photos and even to some people's eyes. I have tried these lights in various applications and they work terribly in every vehicle, quad and tractor. They emit significantly less light than their incandescent counterparts.