Yes, the lenses are far more efficient than without IMO. Also, the light is culminated which, from what I understand, makes absorbing the photons more efficient. I think lenses will be an absolute must when building a highly efficient array, unless the emitters use a very narrow angle already.
billyjojimbob11 Reviewed by billyjojimbob11 on . Building LED lights from facts, no theories I was going to post this at the Perfect LED Grow Light thread, but as some of what im going to post was posted 2 years ago on the stickied thread about LEDs and people still continue developing lights from wrong ideas, i think a thread about this topic is largelly needed. The main problem is related to efficacy of spectrums. When the firsts LED experiments at Overgrow, we work on the hypothesis that blue and red light are more effective. It was an appealing hypothesis that promises large Rating: 5