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01-14-2011, 07:21 PM #36OPJunior Member
HPS vs. Induction + CFL flowering comparison
Power vs. Grams:
I will ignore the incidental power used to heat or cool the cabinets. Although we all know typically less heat is better because it saves on cooling costs, it's outside the scope of today's experiment.
- HPS: ratio: 0.52g/w (Power used: 315w. Weight produced: 164g.)
- Ind: Ratio: 0.57g/w (Power used: 138w. Weight produced: 78g.)
Conclusions:
I feel it's safe to conclude that, under the conditions of this experiment:
- This induction lamp did NOT produce the same yield as an HPS lamp when using only 50% of power
- This HPS lamp is only 93% as power efficient as this Induction/CFL combination
Notes for future experiments:
- A vendor has claimed enclosing the induction lamp's shade would increase its performance
- Insulation & white poly sheathing will be added to the cabinets to improve temperature stability & light focus
- Lamps will be lowered 8"-12" to get closer to the expected final height
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