Upgrade to 600w Eye Hortilux?

I've got a Agromax Dual Spectrum 600w...It was part of a package deal. I havent' been unhappy with the results, but it's all I've known. I'm thinking about getting an Eye Hortilux 600w HPS

Will this work with my Digital Greenhouse ballast? Is it worth the $$$ to upgrade if I'm not gonna get a new ballast as well?

No you won't gain the amount of money you'll be investing.

Get a 1000watt if you want to upgrade, or another 600 and run both.

If you want the most out of your digital ballast, get a digilux. they run off of the higher frequency of digital ballasts. Thats the bestbulb you can possibly get