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I had one of those for when I started the grow, but I've done so much research now that I understand exactly what spectral range I need and what each colour range is used for by the plant. So I had to get a full spectrum QB. I'm just waiting for the bank to get back to me as I'm currently buying...

Samsung are releasing their new diodes in the coming weeks/months so LM301b will be outdated regardless. They are, however, the most efficient diodes on any QB at the moment. I picked up 3 QB's from Invisible Sun LED last year on black friday and I'll be using them for my first grow (coming...