1W Dual Chips 660nm 850nm 3030 SMD LED Diode

✅ Why lower power 660nm / 850nm SMD LEDs with flat package are used in a therapy belt:

🔹 1. Better Skin Contact & Uniform Irradiation

Flat SMD LEDs have low profiles that sit close to the skin.

This ensures consistent light penetration across the treatment area.

Unlike dome-shaped LEDs, flat packages don't create hot spots or uneven contact.

🔹 2. Safe Power Density for Human Tissue

Lower power LEDs (typically 0.05W ~ 0.2W) are:

Safe for prolonged use on skin

Reduce the risk of overheating or tissue damage

Especially important in wearable devices like therapy belts where LEDs are in direct contact with skin.

🔹 3. Thermal Management

Lower power LEDs generate less heat.

Flat SMD packages help in:

Better heat spreading on flexible PCBs

Avoiding bulky heatsinks (important for wearables)

This improves comfort, battery life, and device safety.

🔹 4. Flexibility & Lightweight Design

Therapy belts need to be flexible, thin, and lightweight.

Flat SMD LEDs allow dense, even arrays that can bend with the belt.

2x3w 3535 smd leds dual chips: 660nm+850nm, dome silicone package	2x0.5w 3030 smd leds dual chips: 660nm+850nm, flat silicone package

🔹 5. Wavelength Efficiency

660nm (Red): Penetrates ~3–5 mm into skin → good for surface tissue, inflammation, collagen.

850nm (Near-IR): Penetrates deeper ~5–10 mm → targets muscle and joints.

Even low-power LEDs at these wavelengths can deliver therapeutic energy (J/cm²) over time.

🔹 6. Cost Efficiency

Lower power SMD LEDs are more affordable and easier to source in bulk.

Perfect for belts with dozens or hundreds of LEDs.

✅ In Summary:

We use low-power 660nm and 850nm flat SMD LEDs in therapy belts because they offer a safe, uniform, thermally efficient, and wearable-friendly solution for effective light therapy. 

1W Dual Chips 660nm 850nm 3030 SMD LED Diode Picture

 

LED PCBA Work made by GMKJ

 

1W Dual Chips 660nm 850nm 3030 SMD LED Diode Dimension

1W Dual Chips 660nm 850nm 3030 SMD LED Diode Electrical Specs

Parameter	Symbol	Conditions	Color	Min	Avg.	Max	Units
Forward Voltage	VF	IF=150mA	R66	1.80	--	2.40	V
			R85	1.40	--	2.00
Luminous Flux	Φv	IF=150mA	R66	15	--	20	lm
Radiant Flux	Φe	IF=150mA	R85	50	--	150	mW
Peak wavelength	λp	IF=150mA	R66	655	--	665	nm
			R85	840	--	850
Temperature Coefficient of Forward Voltage	∆VF/∆T	IF=150mA		−−	-2	−−	mV/°C
Reverse Current	IR	VR=5V		−−	−−	10	μ A
Viewing Angle	2Θ1/2	IF=150mA		−−	120	−−	Deg

1W Dual Chips 660nm 850nm 3030 SMD LED Diode Applications

 

1W Dual Chips 660nm 850nm 3030 SMD LED Diode

 

Photobiomodulation (PBM) Therapy

For pain relief, muscle recovery, inflammation reduction

Red & Near-Infrared Light Therapy Devices

Facial masks, handheld wands, therapy pads

Medical & Wellness Equipment

Laser/LED therapy belts, wraps, and patches

Hair Growth Devices

Stimulates hair follicles by penetrating scalp layers

Wound Healing & Skin Rejuvenation

Enhances collagen production and tissue repair

Veterinary & Pet Therapy Tools

Non-invasive treatment for joint and muscle issues in animals

Red therapy lights

anti aging led lamps

skin whitening lights

About GMLEDs

Certification available in GMLEDs

Guangmai Technology Certificaitions

CE

CE-LVD

FCC

ROHS

ISO9001

LM-80

For more details, please contact with us directly!

About GMLEDs/GMKJ

 

 

Shenzhen Guangmai Electronics Co., Ltd., established in 2009 with a registered capital of 30 million RMB, is an enterprise specializing in the manufacturing of semiconductor packaging devices. Its subsidiaries include Shenzhen Guangmai Technology Co., Ltd., Guangmai Technology (Hong Kong) Co., Ltd., and Shenzhen OKAY Lighting Co., Ltd., forming a powerful corporate group. Guangmai Electronics is a national high-tech enterprise and a specialized and new enterprise in Shenzhen. It has been ranked among the top 100 in China's LED industry and has been awarded honors such as Shenzhen Standard Application Demonstration Unit and Guangdong Integrity Demonstration Enterprise.

 

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