Spa Light Replacement

I have a Hayward Spa Light (Housing = SP-601, Fixture = SP-529HSL) that requires a bulb change every 1 or 2 years and I wanted to check if there was a newer model that would fit in the same hole that is more reliable.

Has there been an upgrade on this light?

Hello - I posted this last year and I am still interested in replacing this light. Is there a direct replacement for this light fixture with an LED bulb?