Strobe recommendations for MDX-D600

I recently bought a MDX-D600 for pretty cheap. I checked it for leaks and it’s good. It’s my first real underwater housing for a real camera. What strobe would you recommend that wouldn’t cause my wife to file for divorce based on the price?

I recently bought a MDX-D600 for pretty cheap. I checked it for leaks and it’s good. It’s my first real underwater housing for a real camera. What strobe would you recommend that wouldn’t cause my wife to file for divorce based on the price?