FlexTherm | Professional-Grade Red Light Therapy
FlexTherm red light therapy
FlexTherm  /  CNT Heating Technology

Professional-Grade Red Light Therapy
in the Comfort of Your Home

Whether it’s post-exercise recovery or the alleviation of chronic pain, our red light and flexible heating products offer a comprehensive at-home rehabilitation solution — making health within your reach.

0.3mm
CNT Heating Film
3s
Rapid Heat-Up
NTC
Smart Temp Control
OEM/ODM
Global Brand Partner
Carbon nanotube flexible heating film warming tissue CNT HEATING FILM NTC SMART CONTROL
FlexTherm · OEM / ODM

What is Carbon Nanotube Flexible Heating?

Carbon nanotube heating film converts electricity into gentle, even far-infrared warmth across an ultra-thin, bendable surface. Paired with flexible electrodes and NTC smart temperature control, it delivers fast, uniform and precisely regulated heat.

  • 3s rapid heat-up — full working temperature in seconds, with ±1°C stability.
  • 0.2mm ultra-thin — bendable, foldable and fully wearable heating layers.
  • Safety by design — low-voltage NTC control with over-temperature cut-off.
0s heat-up
0bend cycles
0% efficiency
Core Technology / CNT

Carbon Nanotube Flexible Heating Film

A self-supporting carbon nanotube conductive network turns current into even, full-surface warmth — no hot wires, no cold gaps. Thin, foldable, cuttable, and engineered around your product.

Carbon nanotube lattice structure SWCNT conductive lattice
0.15mm

Film thickness

98%

Electro-thermal conversion

10,000+

Bending cycles

45°C

NTC controlled setpoint

3s

To first warmth

  1. SEM image of the carbon nanotube network
    Structure

    CNT network

    Nanotubes interlock into a dense random web. Millions of contact points build continuous conductive paths, so the whole plane heats — not a single line.

  2. Roll of black CNT flexible heating film
    Material

    Flexible heating film

    Coated onto a thin polymer carrier and produced in roll form — light, matte black, foldable, and cuttable to your product shape.

  3. CNT heating film with flexible FPC electrodes
    Integration

    Flexible electrodes

    Low-resistance FPC electrodes bond to both edges of the film and pair with an NTC sensor feeding real temperature back to the controller.

  4. Infrared thermal image of two heating panels
    Verification

    Infrared testing

    Every design is validated with an IR camera. Thermograms show panels heating as uniform blocks — no wire lines, no local overheating.

CNT Heating Film

Main Features

Carbon nanotube flexible heating film — ultra-thin, metal-free, fold-resistant and electrically safe by design.

Carbon nanotube flexible heating film samples
0.02mm Film thickness
Flexible CNT Heating Film Custom shapes & sizes · Metal-free
Ultra-thin Foldable Even heating
FlexTherm — Customization / Controller Options
Fully Customizable

Build It Your Way

Heating plate shape, controller, power head and temperature curve — every part of a FlexTherm CNT heating system is configurable for your brand and your market.

04

Temperature level

NTC smart control

127.4°F
High
118.4°F
Medium-high
109.4°F
Medium
100.4°F
Low
FlexTherm Certifications

Certifications & Compliance

Certified safe. Engineered for global markets.

FlexTherm CNT heating products are independently tested for international safety, quality and market-access requirements.

CE European Conformity mark

CE

European Conformity

EMC and LVD tested for EU/EEA market access.

FCC US Part 15 mark

FCC

US Part 15

RF emission verified for smart temperature controllers.

RoHS hazardous substances compliance

RoHS

Hazardous Substances

Restricted-substance testing for films and wiring.

UL ETL electrical safety mark

UL / ETL

Electrical Safety

Overheat, short-circuit and flame-retardancy testing.

ISO 9001 quality management

ISO 9001

Quality Management

Audited production and OEM batch traceability.

ISO 13485 medical devices

ISO 13485

Medical Devices

Quality framework for therapeutic heating products.

REACH chemical safety

REACH

Chemical Safety

SVHC screening for fabrics and skin-contact adhesives.

BSCI social compliance

BSCI

Social Compliance

Factory ethics audit for global retail buyers.

Full reports and certificate numbers are available under NDA.

Therapy Science

What is
Cold Therapy?

Cold therapy — cryotherapy — uses controlled low temperature to constrict blood vessels, slow inflammation and numb pain signals. Paired with precise, flexible heat it becomes contrast therapy: the recovery loop athletes and clinics rely on.

Contrast Loop
Cold 4°C · Heat 45°C
Cold therapy recovery

Cold calms. Heat restores.

FlexTherm carbon-nanotube film delivers the heat half of the cycle — even, thin, wearable.

01Vasoconstriction

Cold narrows blood vessels within minutes, limiting swelling and micro-bleeding after strain or injury.

02Pain signal damping

Lower tissue temperature slows nerve conduction, dulling the pain response without medication.

03Rebound circulation

As the area rewarms, fresh oxygenated blood floods back — the flush that clears metabolic waste.

04Heat phase — FlexTherm

CNT heating film with NTC control holds 38–55°C evenly across the pad, eye mask or wrap — no hot spots, fully wearable.

10–15min

Optimal cold exposure per cycle

3s

CNT film heat-up response time

±1°C

NTC temperature accuracy

0.3mm

Flexible film thickness

Certifications & Compliance

Certified safe. Engineered for global markets.

FlexTherm cold-therapy and CNT thermal products are independently tested for international safety, quality and market-access requirements.

VerifiedRoHS

RoHS

Hazardous Substances

Restricted-substance testing for gel packs, films and wiring.

VerifiedUL / ETL

UL / ETL

Electrical Safety

Overheat, short-circuit and flame-retardancy testing.

VerifiedISO 9001

ISO 9001

Quality Management

Audited production and OEM batch traceability.

VerifiedISO 13485

ISO 13485

Medical Devices

Quality framework for therapeutic hot & cold products.

VerifiedREACH

REACH

Chemical Safety

SVHC screening for fabrics and skin-contact materials.

VerifiedBSCI

BSCI

Social Compliance

Factory ethics audit for global retail programs.

VerifiedFDA 510(k)

FDA Listed

US Market Access

Establishment listing pathway for cold-therapy devices.

VerifiedCE / UKCA

CE / UKCA

EU & UK Conformity

EMC, LVD and product-file compliance for European sale.

Full reports and certificate numbers are available under NDA.

Request test reports
FlexTherm — Product Categories