Adding Led lighting in Older tubs

[Billsfanmd]

I'm looking at lots of used hot tubs in the 8-10 year old range  seems most back then had single incandescent bulb. I really love the Led effect at night time.  Do I just replace the single bulb with a color changing bulb that fits in the socket or are their kits thst manufactures made to update tubs   Thx. Looking at a bull frog spa and would love to Led it

[Jacuzzi Jim]

 Most older spas used a basic dome light bulb in a car.  Something like this should work or get you in the right direction.

 https://www.poolsupplyunlimited.com/JandJElectronicsColorGlo%E2%84%A2SparklerMultiColorLEDPortableSpaLightsLSL91/142051p1?gclid=CIvMo8OA1NQCFcZcfgodat8FrA

[Billsfanmd]

Thx !