I'd just about give you either of the two spotlights on my boat. I don't use either of them because I've found a hand held, rechargeable spot light is much easier to use.
First of all, when you're needing a spotlight you want to keep your eyes on whatever it is you want to light up (man overboard, etc.). With the mounted, remote control lights you have to take your eyes off the object you're watching to find and use the controls, and then you have to keep adjusting the light because the darn boat keeps moving.
With a hand held they're cheap (around $20-25), they're portable (you can light up things alongside the boat or off the stern), they're faster to use and easier to keep aimed at the object no matter what the boat is doing, and you don't have to take your eyes off the object to keep the light on it.
Oh, and did I mention they're cheap?