These are cute, but a waste of money. With many years of riding, much of it at night, having had other good Kuryakyn products, and some good spotlights to help see game and obstacles, I quickly threw money at Amazon for these. Now, having had to replace a bulb after a couple months of use, and re-tighten a mounting bolt, they are for sale to the highest bidder, with a supply of spare bulbs, which can only be found online, BTW. Do not use the hundred watt bulbs available at some auto supply stores. As someone else noted, the mounting bolt comes loose when you tighten the attaching nut, which requires disassembly of the light to re-tighten so it doesn't shake itself to death. Changing the bulb is a task for an experienced technician, which I am, with a vast collection of Snap-On tools, and patience. In addition, their function at night is to blind other drivers with their floodlight ability. Result is being flashed continuously by oncoming brights, leaving you blinded for a few seconds. Aiming them at the ground, or the right side ditch might avoid this. Their ability to aid night vision is about useless, contrary to what the description claims. They are good as daytime visibility enhancement. Buy some real spotlights for night riding, like the Harley variety, instead of throwing your hard earned bucks away on these. Kuryakyn Engine Guard Mounted Driving Lights