I would 100% rather strips than cobs no matter how big the space. If you are using hps and your plants don't burn then you are either not utilizing the edges of your tent effectively, or you're using CO2 (in that case you'd also not be utilizing the edges effectively because they would also have the CO2.no just more marketing. My hps plants dont burn in the middle. The differences are extremely minor. And strip lights lost a bit of max ppfd compared to boards and cobs. Everything is a trade off. The only answer is right tool for the job. Would you want huge strip lamps over your plants in a greenhouse or would you prefer proper greenhouse fixtures?