No, they're being used for sprout to finish. Their par lowest number tested well over 900 at 18 inches and the par600 is 1020 at 18 inches. both are full Spectrum and from what i am seeing, im happy. The reviews are almost 5 stars with some beautiful grow pictures. Im confident these are more than enough for 4 plants. The par600 is available for review on Growdiaries.com in the drop down menu select lights then valspectra, select the par600, then click on the grow diaries and look at the pictures and customer ratings. Growdiaries.com is an extremely handy page. If you're not aware its grows that people recorded. They include growing media, nutrients brands used, lights used, training methods used, temp, humidity, well you get the idea. This page is great if you are thinking about buying new seeds. You can look at a bunch of different grow diaries and see how they come out