Thank you GoFish104 and TANKJR for your replies, you two got me thinking.

I can't really run a new line without cutting into the walls. Since I rent this place I am limited. So what I decided was to draw the 2-3 amps for my veg cab from another nearby outlet on a different circuit than the 16a line. This way I can use the 16a circuit line for just the 1k light and be fine.

Do you think I'll be fine running the 1k on a 16a line? Should right?

My only other option would be to try to trade with someone, my 1k for a 600w. But I'd rather not......