I have a Jandy muti colored pool light. The light has stopped working and i pulled it out of pool and measured the voltage to it which was OK. The light is 12 years old so I am sure the bulbs have burned out. So looking for replacements on line it says I need to replace all 8 bulbs ( Jandy P/N R0399600) in it at $ 50 each plus gasket which would put the total costs to around $500 to fix. So I have several questions related to a fix or replacement. Do all 8 bulbs need replaced at the same time? If so am I better off to buy a different more modern pool light. If so what are the things I must consider when selecting a replacement pool light.