I haven't used a Mars blurple light. I've got the full spectrums in multiple sizes. I know they aren't the best leds I can get. But im on a budget to be modest n those are what I've been able to afford. I do think they perform better than I expected. I have 4x4 tents side by side with the middle open. I recently got a hps im gonna put on one side. I will post some late flower pix soon too. If anyone cares. Honestly I don't take lots of plant pix, jus not my thing, I jjs like to grow n use the stuff. Im not in the loop on the trash talk bout djff lights n all that, also not my thing. I've had negative comments on my lights n started posting comments n pix only to defend what I think is a good product at a decent price. I will say this, I work in a dispo in oklahoma n I see a fair amount of samples from grows that use the best of all equipment n ive learned if you don't really know what ya doin don't make a damn what lights, nutes n air system ya got. Your bud will still be Meh, hope I kept the pot stirred n ill drop some pix of the trash buds mars lights grow soon