600w hps to Led or qb

What's some.good pre made cobs
Or QB's to replace 2 600w hps?

Currently use 2 65w qbs for veg and the 600w hps's for flower but looking to switch for.less heat & power bill

550-600w of qb's will replace 1000 SE lamp. I would work backwards-find out how much area you're trying to light and then see how much PPF you will need to create the light 'density' over your area. Then you can make an informed decision on how much and what types of fixtures are best for you.

Here’s a prebuilt QB fixture from Timber grow lights that’s 600w.
http://timbergrowlights.com/redwoodqb/

And check out some strip builds if you’re wanting a diy option that might save you a little money.
http://ledgardener.com/diy-led-strip-build-designs-samsung-bridgelux/