Spreader Light

[bad1129]

Trying to get my first boat, a Pearson. 26, ready for the season. I've checked out all the wiring and fuses. The only lights not working are the spreader and steaming lights. I've identified the steaming light and I think I know what bulb to use. I need help with the spreader light. Any ideas as to the make, model and what bulb it uses? It's the lower light in the attached picture.

Thanks!