I'm thinking of upgrading from a single 20 watt NO fixture to a 65 watt PC
fixture and I've found a lot of deals on ebay. The only problem is that it seems like most of them come with a 50/50 bulb. I'm still not 100% on all the lighting terminology but it seemed to me from the lighting sticky that this would not be a good bulb for plant growth. Will I need to buy a new bulb for my fixture or will the 50/50 do for the time being?