Who makes the best ceramic metal halide light

I need to buy a light soon and was thinking about going led maybe something like the optic 6 or comparable but the guy at the grow shop was telling me about the ceramic metal halide so now I'm torn I've had 2 400 watt switchable ballist lights so I've always been hid guy so I think I'm gonna go with the CMH but I was wondering who makes the best or should I go with a cheaper model being that there all the same.any input is much appreciated thanks.

here is my curent cob panel,, you would not have to buy bulbs anymore

I rate Sun systems as best but most $$$. The bulbs are not all the same for 315 chm. You get what you pay for. Make sure you match bulb and ballast no matter what combo you buy.

Ballast is key; top quality low frequency square wave ballast is the best option. Philips makes a very good one.

Prism ballasts

Philips cdm elite and agro elite bulbs