The one-line answer
Buy price is the cost. A red light device has no ice, no water treatment, no heater circuit, and electricity that rounds to pennies. So the real question is not "what does it cost to run" but "how much coverage do you need, and what does that tier cost up front."
Targeted tier: $170-$236
The Hooga HG300 ($170) is the value entry: a 60-LED panel you can hang, stand, or hold against one area at a time, with a 2-year warranty. The Rouge Nano ($236) trades coverage for portability, a pocket-sized 12-LED device with switchable red and near-infrared and USB-C charging.
On a 3-year, three-sessions-per-week basis (156 sessions per year, the same basis we use across the site), the HG300 works out to about $1.09 per session and the Nano to about $1.51. Electricity at this wattage is around a cent per session.
Face tier: $349-$516
Masks are priced on convenience and skin-specific wavelengths, not raw power. The HigherDOSE mask ($349) covers the full face hands-free with 630 and 830 nm. The Rouge Elite mask ($516) extends coverage to the neck and chest and adds blue 415 nm for acne and yellow 590 nm for pigmentation across 186 LEDs.
Per session over three years: about $2.24 for the HigherDOSE and $3.31 for the Rouge Elite. Both are skin tools; neither replaces a body panel for muscle or joint work.
Half-body tier: $579-$1,199
This is where most committed home users land. The Sun Home 300W ($579) is an FDA-cleared desktop panel for daily targeted use. The Rouge Pro G4 ($1,196) is the 8-wavelength half-body panel with app control that daisy-chains later for full coverage. The HigherDOSE mat ($1,199) takes a different route: 1,000 LEDs you lie on, so full-body coverage without positioning anything.
Per session over three years: roughly $3.71 (Sun Home 300W), $7.67 (Pro G4), and $7.69 (mat). Electricity remains a non-factor at one to a few cents per session.
Full-body tier: $1,499-$4,476
Single-panel full-body coverage starts with the Sun Home 1800W ($1,499, FDA-cleared, 600 LEDs) and runs through the Rouge Max G4 ($2,396, 576 LEDs) to the flagship Rouge Ultimate G4 ($4,476, 1,152 LEDs). All three carry multi-year warranties (2 years on the Sun Home, 3 on the Rouge panels).
Per session over three years: about $9.61, $15.36, and $28.69 respectively. Even at the flagship's nameplate power, a 10-minute session costs about five cents of electricity, roughly $8 per year at three sessions a week.
The costs guides forget
Eye protection: $12. Near-infrared is invisible and bright red light is uncomfortable; goggles are a one-time buy and worth it for panel users.
Stands and mounting: large panels need to be held at a consistent distance. A door mount runs $35, floor stands $180-$280, and motorized or pneumatic stands $456-$560. Budget for one if you buy a Max or Ultimate class panel; the mat and masks need nothing.
Replacement horizon: LEDs degrade over years rather than failing outright. The honest proxy we track is warranty length, 1 year on the masks and mat, 2 years on Hooga and Sun Home, 3 years on the Rouge panels. Longer warranty, longer confident lifespan.
Cost per session, compared
All figures on the same stated basis: device price divided by 156 sessions per year over 3 years, electricity at $0.17 per kWh, 10-minute sessions.
Hooga HG300: $1.09. Rouge Nano: $1.51. HigherDOSE mask: $2.24. Rouge Elite mask: $3.31. Sun Home 300W: $3.71. Rouge Pro G4: $7.67. HigherDOSE mat: $7.69. Sun Home 1800W: $9.61. Rouge Max G4: $15.36. Rouge Ultimate G4: $28.69.
For context from the rest of what we vet: a traditional sauna session costs roughly a dollar of electricity and a chiller cold plunge a similar amount in power, while every red light option above costs pennies to run. Red light is the one category where the sticker price is genuinely the whole story.