good call, To be honest I have no idea what bulbs are in the lights that aren't hanging in my shop.. My father used to use them to start vegetable seedlings and winter over some orange and lemon trees and they seemed to work well enough, so he may have bought new bulbs at the local hydro shop he used to haunt

Do you think tomatoes would be a good test crop? or should I try something else?

Thanks again for your help, The 1k is definitely a grow light though