Head to head · August 31, 2026
Rouge Pro G4 vs Vellgus Pro
The Pro is the cheaper of the two at $849, so it wins on value if the specs are close enough for your use. The Pro G4 packs more emitters (288 against 120), which usually means a shorter session for the same dose. The Pro G4 covers more wavelengths, though the extra bands have thinner research behind them than 660nm and 850nm.
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| Spec | Pro G4 | Pro |
|---|---|---|
| Price | $1,121 | $849 |
| Wavelengths | 630nm · 650nm · 660nm · 670nm · 810nm · 830nm · 850nm · 1060nm | 630nm · 660nm · 810nm · 830nm · 850nm |
| Emitters | 288 | 120 |
| Irradiance | 59.2 mW/cm2 average across 9 points, 65 mW/cm2 peak (total wattage output 134 watts) at 6 in, measured by Alex Fergus (Light Therapy Insiders) | Brand states greater than 245 mW/cm2 with no distance given, and prints the identical figure on the half-size Elite. Without a distance it cannot be used for dose calculation |
| Coverage | 36.2 x 11.8 x 2.6 in | 52 x 21 x 6.5 cm, 4 kg |
| FDA status | registered | unknown |
| Warranty | 3 yr | 3 yr |
| Returns | 60 days | 30 days |
Pro G4
Rouge discloses more honestly than almost anyone, publishing both measurement methods with distances. Even so, an independent tester came in a third below their own spectrometer number.
Pro
Specs captured from an archived snapshot because Vellgus blocks automated access, so verify the price before publishing. The irradiance figure is unusable as published.