Benzelsanswered grow question 3 years ago They are ok- just ok. Not great- its about the cheapest light you can get that actually works. Id go with the Viparspectra P1000 or XS 1000 if you got a lil more money to spend. The XS 1000 is the best 1000 series light thats still cheap-ish. The P 1000 is bit cheaper and throws off a tiny bit less light due to driver being a bit cheaper but its basically same as the XS series other than that. Im getting the P 600 for my germination tent, to grow plants out for outdoors use and will likely grab a P 1000 or XS 1000 after that when I move into a tent again.