RedLightMeter

Panels / GembaRed / Rex 2.0

GembaRed · Targeted

Rex 2.0

630 / 660 / 830 / 850 nm · 225 LEDs · 23 W

Irradiance @ 15 cm 5 mW/cm²
Brand figure at 15 cm

Brand reports 5 mW/cm² at 15.24 cm (our 15 cm standard).

How long is a session?
—per area at 15 cm · 12 J/cm² target

Based on this panel's irradiance (5 mW/cm² at 15 cm). Typical dose ranges from published studies - general guidance, not medical advice.

TypeTargeted
Wavelengths630, 660, 830, 850 nm
Normalized irradiance @ 15 cm5 mW/cm²
Coverage area929 cm²
Total power draw23 W
LED count225
EMF @ 15 cmNot disclosed
Flicker0.2%
Pulsingnone
Third-party testedYes
CertificationsFCC, RoHS
Warranty2 years
Made inChina
App controlNo
Data completeness91%

GembaRed Rex 2.0 review

We have not had this panel on a bench. Everything below is its published specs measured against the 101 panels in the database - irradiance normalized to 15 cm, price and coverage compared with the other 24 targeted panels in its class.

What it does well

  • Large treatment area for its class at 929 cm².
  • Brand publishes third-party test results rather than in-house numbers only.
  • Effectively flicker-free at 0.2%.

Where it loses

  • Weak on delivered light: #19 of 21 targeted panels at 5 mW/cm² normalized to 15 cm, which means longer sessions than most rivals at this size.
  • Expensive for what it delivers: value score 2/100, #16 of 20 in its class.
  • 3 cheaper targeted panels in the database deliver at least as much light at 15 cm, from $147.

Cheaper panels that match it on light

Same form factor, lower price, and at least as much irradiance at 15 cm.

PanelIrr @15cmPrice
Bestqool BQ60 32 mW/cm² $147 compare →
Bestqool BQ40 24 mW/cm² $149 compare →
GembaRed Beam Mini 16 mW/cm² $159 compare →

GembaRed Rex 2.0 FAQ

Is the GembaRed Rex 2.0 worth it?

On light delivered per dollar it scores 2/100, #16 of 20 targeted panels in the database. 3 cheaper panels of the same type deliver at least as much light at 15 cm, starting with the Bestqool BQ60 at $147.

How long is a session with the GembaRed Rex 2.0?

At 5 mW/cm² normalized to 15 cm, a 10 J/cm² dose takes about 33.3 minutes at that distance and a 20 J/cm² dose about 66.7 minutes. Move closer and the time drops.

Similar targeted panels

PanelIrr @15cmCoveragePrice
MitoPRO 300 130 774 cm² $369 compare →
GembaRed Improve v1.1 5 929 cm² $399 compare →
Hooga ULTRA360 60 705 cm² $399 compare →