LU400S/HTL/EN
Initial Lumen Output: 55,000
That's 137.5 per/watt, a total of 5,000 lumens more per/bulb than the 125 per/watt myth.
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LU430S/HTL/EN
Initial Lumen Output: 58,500
That's 136.1 per/watt, a total of 4,750 lumens more per/bulb than the 125 per/watt myth.
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LU600S/HTL/EN
Initial Lumen Output: 88,000
That's 146.7 per/watt, a total of 13,000 lumens more per/bulb than the 125 per/watt myth.
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LU1000B/HTL/EN
Initial Lumen Output: 145,000
That's 145 per/watt, a total of 20,000 lumens more per/bulb than the 125 per/watt myth.
Well, I could go on forever, but with only these few bulbs from Hortilux, I've shown that the supposed 125 lumens/per watt in HPS bulbs is a total fabrication, an uninformed miscalculation and not even a good estimate.
When someone spouts off with a bunch of "statistics" concerning YOUR grow, ALWAYS check to make sure they aren't handing you a bunch of baloney that will affect how much weed YOU can grow.