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Originally Posted by MalHavoc
The tank uses 3 LED bulbs totalling 13 watts, with PAR readings of 235 mE/m2 above water, 160 immediately below water, and 24 mE/m2 on the bottom of the nano tank it was used on.
The tank featuring 2 x 400W Ushio bulbs with 3 x 110W VHO actinics has PAR readings of over 400 just below the water surface, and drops to the mid-200's near the bottom of the tank.
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This sounds like comparing apples to oranges to me.
LED watts totalled 13, MH watts totalled 800, and VHO watts totalled 330. The comparison would be more valid, imo, if 800 LED watts were compared to 800 watts of MH, and if 330 watts of LED were compared to 330 watts of VHO.
THOSE would be a valid comparisons.
Research on, deepblue!