Q: Will free samples be provided?
A: Certainly! We do offer free samples initially for quality testing purposes.

Q: Are you a manufacturer or a trading company?
A: We are a highly experienced and professional LED manufacturer with a history

dating back to 2013.

Q: What payment methods are acceptable?
A: We can accept T/T, Paypal, Western Union, and other methods according to clients' specific requirements.

Q: Regarding the lead time, what can be expected?
A: It varies depending on the order quantity. Generally speaking, the lead time is around 5 to 7 working days. For samples, it's possible to have same-day delivery in some cases.

Q: How can I obtain a quotation from you?
A: Kindly send us messages detailing your requirements, such as the specific products and the quantity you need. Our professional team will get back to you promptly, usually within a few hours.

Q: What kind of technical support is available after making a purchase?
A: We will supply the data sheet and operation manual to you. Our sales engineers will be on standby to answer any of your questions at any time.

Q: In the event of LED failure, how will you provide support?
A: Customers are required to provide pictures of the faulty products or the rejected samples. Our engineers will then analyze the failure to identify the causes. If the failure is due to product quality issues, we will replace them with qualified ones as compensation.

Recommended Wavelengths for Aesthetic Phototherapy
Color	Main Wavelength (+/-5nm)	Functions
Purple	415nm	Blue/Violet lightdelivers triple benefits: Anti-inflammatory & Antibacterial – Eliminates acne-causing bacteria (P. acnes) Skin Purification – Reduces excess oil and refines pores Bruise & Pain Relief – Accelerates healing of subcutaneous hematomas and eases discomfort
Purple	430nm
Blue	460nm
Yellow	590nm	590nm (Yellow Light) – Skin Rejuvenation & Detoxification Key Benefits: Lymphatic Activation: Stimulates lymphatic drainage, reducing puffiness Hyperpigmentation Correction: Targets melanin clusters to fade sunspots and post-inflammatory marks. Soothing Effect: Calms sensitive/rosacea-prone skin by reducing redness
Orange	605nm	605nm (Amber-Orange Light) – Collagen Boost & Anti-Aging Key Benefits: Collagen Synthesis: Penetrates deeper than 590nm, stimulating fibroblast activity Wrinkle Reduction: Improves skin elasticity, smoothing fine lines. Microcirculation Enhancement: Promotes blood flow for a "glowing" complexion.
Red	630nm	Superficial pigmentation
	640nm	Fine line reduction
	660nm	Scar remodeling & joint pain
IR	810nm	The fundamental mechanism of infrared phototherapy involves raising tissue temperature, which induces vasodilation (blood vessel relaxation) and increases metabolic rate. These effects collectively enhance the elasticity of ligaments, joint capsules, and muscles while accelerating tissue repair processes.
	830nm
	850nm
	880nm
	940nm

20pcs Flexible LED PCB Module 660nm+850nm Deep Red+IR

2835 SMD LED

Photography LED

3030 SMD LED

High CRI COB LED

5050 SMD LED

Tunable COB LED

5730 SMD LED

High-Efficiency LED

7070 SMD LED

COB LED Chip

3528 SMD LED

Constant COB LED Chip

Bi-Color SMD LED

LED PCB Assembly

RGB SMD LED

RGBW SMD LED

RGBCW LED

2835 LED Chip

3030 LED Chip

5050 LED Chip

7070 LED Chip

SMD LED

COB LED

20pcs Flexible LED PCB Module 660nm+850nm Deep Red+IR