The ViparSpectra KS5000 - Our latest LED Bar grow light is available now! We sent one to Dr MJ Coco @drmjcoco to test and review. We are thrilled that he called it "The best 4x4 grow light in its class"! In a new review video, he does PAR and ePAR tests and shares his advice on the best hanging heights. If you are curious about our great new KS5000, we would like to invite you to watch his review video on the Dr MJ Coco YouTube Channel.