For the money, you can't beat these: https://www.amazon.com/d/Automotive...546697564&sr=8-9&keywords=12v+led+flood+light
Brighter, durable, used by many members here including myself, and a very fair price.
I have mine clamped on but if doing it again I would buy some large rare earth magnets and mount directly to the base of these lights. Here's a good thread about magnet mounts: https://www.tractorbynet.com/forums...ng/348769-magnet-mounted-led-rops-lights.html