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Allistar Center
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May 9 •
Session Report — New 3D printed Phi Ratio Cone
Today I ran a simple but revealing experiment. Same LED, same voltage (12.1V), two power sources — the Phi Ratio Cone self-oscillating circuit vs direct DC. The results surprised me: Cone circuit: 2.17W in → 1,854 lux out Direct DC: 3.26W in → 538 lux out The cone uses 33% less power and produces 3.4× more photons resulting in 5.2 times higher efficiency. The lux meter confirmed it even though DC looks brighter to the eye. Full session report with measurements, photos, and explanation attached. 👇
2 likes • May 9
Beautiful work, and thank you for documenting it so openly. I noticed one possible issue in the lux-meter readings: the cone test appears to show AUTO ×10, while the direct-DC test appears to show AUTO ×100. If those are range multipliers, the corrected readings would be about 18,540 lux for the cone and 53,800 lux for direct DC. That would reverse the efficiency conclusion, so I think this point is worth checking before drawing the final interpretation. Much respect for sharing the experiment — this is exactly the kind of detail that helps refine the work.
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