I'm on my fifth tow vehicle since starting to full time, and on this one I'm switching to the magnetic lights. First, the expense of the wiring kit and installation if you have it done is avoided. Second, when hooking up to depart int he morning and finding out your ground is gone bad and the light is too dim or the bulb is burned out it means delaying your departure. Third, most tow vehicles require either pulling a fuse or adding a hot wire to keep the battery from discharging, something not necessary with the magnetic lights. Last, in my case, the CRV requires drilling out the light sockets to add bulbs - too much trouble. I'll just stick on my lights each morning and hit the road.