Cold Laser Therapy: A Safe and Convenient New Choice for Home Physiotherapy
- winni
- February 02, 2026
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1. What is Cold Laser Therapy?
Cold laser therapy, also known as low-level laser therapy (LLLT), is a non-invasive, pain-free, and non-thermal physical treatment method. It uses specific wavelengths of laser light to penetrate deep into human tissues, promoting cell repair, accelerating blood circulation, relieving pain, and reducing inflammation. Unlike surgery or medication, it is a gentle and cumulative natural therapy.
Whether it’s muscle soreness after exercise, joint discomfort, or chronic inflammation, cold laser therapy offers a safe and effective relief option. This device features a dual-wavelength laser system with 650nm red light and 808nm infrared light, targeting surface skin issues and deep muscle/joint problems respectively, making it suitable for a wide range of conditions.
2. Device Features & Technical Specifications
Dual-wavelength laser system:
650nm red light: Acts on the skin surface, reduces inflammation, and promotes wound healing.
808nm infrared light: Penetrates deep into muscles and joints, suitable for chronic pain such as arthritis, cervical spondylosis, and herniated discs.
Three adjustable power levels: Low (50%), Medium (75%), High (100%).
Two operating modes: Continuous wave and pulsed wave (5Hz).
Timer settings: 5 to 60 minutes, adjustable in 5-minute intervals.
Large-capacity battery: 5200mAh rechargeable lithium battery, supports Type-C charging.
3. Usage Steps & Precautions
Before use:
Clean the treatment area and the device window.
Perform a skin sensitivity test (test for 10 minutes on the inner arm or inner thigh before first use).
Wear the included protective goggles.
Operation guide:
Power on: Press and hold the power button for 2 seconds.
Switch mode: Press the mode button to toggle between continuous and pulsed modes.
Adjust power: Press the power button to cycle through three levels.
Set time: Press the time button to adjust in 5-minute increments.
Safety notes:
Do not look directly into the laser—always wear protective goggles during use.
The device is not waterproof—do not use in wet environments.
Do not use on areas with implanted electronic medical devices such as pacemakers.
Not recommended for pregnant or breastfeeding women, young children, or photosensitive individuals.
Discontinue use immediately if discomfort occurs.
4. Applicable Symptoms & Treatment Recommendations
Human symptoms (examples):
Neck/shoulder pain: 10–15 minutes, pulsed mode, 100% power
Upper/lower back pain: 15–20 minutes, pulsed mode, 100% power
Sports injuries, inflammation, wound healing, etc.
Pet symptoms (examples):
Arthritis, hip dysplasia
Skin issues, wound healing
Use under veterinary guidance, preferably on hairless areas
Recommended usage: 1–2 times daily, 20 minutes per session, consistent use for 4 weeks for noticeable improvement.
5. Charging & Maintenance
Laser output is disabled during charging; buttons are unresponsive.
Ensure the first three charges exceed 10 hours each.
If storing long-term, recharge every 4–6 months to avoid battery over-discharge.
Clean the surface with a neutral cleaner and a soft cloth; use an alcohol swab to gently clean the laser ports.