I may just buy a 4x4 but I have 2 gorilla 3x3 with extensions no need to waste them. I have growcraft X3-500 lights so they won't fit. I belive in UL tested quality lights that won't burn my house down. I'm thinking California light works small lights. I don't know if grow craft has lights under 4 feet long. And their new ones are so expensive but worth it. A 300watt is 1800 plus but in independent lab tests they schooled everyone else