Can you provide details about the light used? Did you use it unmodified, or remove the lens(es) for less absorption loss? (They often have a front & inner lens. Did you remove either? Removing both seems to just turn it into an ordinary lightbulb like I'm using, with the diodes facing the way you want the light to go, but much more diffuse than a spotlight. It's more like 120-degree angle light.). What distance?I grew these 2 dwarves useing 1 led spotlight from home depo to prove it can b done.