Recommended brands for an affordable 600w grow box.

Hey, im looking for advice on what are the best/most reliable brands of lamps/ballasts. I want to use a single area for veg and flower instead of seperate veg/flower rooms so I want to use an interchangeable Metal Halide/High Pressure Sodium digital ballast. What brand of ballast would be the best to get, also which bulbs would be the best to use for this? also, I don't mind having to replace the bulbs every couple of grows if I have to, just looking to have the safest/brightest combination.

Anything Apollo. Never had any problems with them and they are pretty cheap compared to others.

Thanks man, I'm probably going to get 2 of their 600w MH/HPS ballasts.

1000bulbs.com. Nanolux they come with a 3 year warranty and a are dimmable, soft start technology, the smallest, lightest and coldest running ballast on the market. And come with a dual . Im not saying apollos are bad, Im just saying these are cheaper and better. https://www.1000bulbs.com/product/91156/GROW-NN600D.html

and I would say a Solis Tek 600. 150 on amazon. 5 year warranty.

I was looking at 1000bulbs.com before, I was wondering if they were a reliable seller. Guess I know now, ahah. Thanks everyone for the replies, it's really helpful!