Pool Light

I need to replace my pool light bulb that recently went bad. I have a Hayward Pool Products light. Model #SP0590SL30. The housing calls for a 100w 12v R20 bulb. It is switch controlled from inside the house. Can you tell me what replacement bulb and gasket I would need for this housing? I am looking at either a white LED light or a color changing LED with or without remote. Let me know what you would recommend.

Thanks

Brian