What light do i get for corals in 2.5G tank?

[Serpent Star12]

I am setting up either a 2.5 gallon or a 5 gallon reef tank. This tank will be all corals as i already have a 155 fowler for fish. I really love corals so thats why im setting this up. I am looking for a cheap light that can grow many soft corals. I have been looking at the 18w par 38s on amazon but idk if those would work? Any help appreciated greatly!!

 

[Brookster123]

Par 38 bulb should work fine in that scenario.

 

[Sniperhank]

I’d agree with a par 38 bulb. It’d be the cheapest route as well.