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Kernel CN-308B Portable 308nm Excimer Laser Psoriasis Lamp 308nm LED UVB Phototherapy for Vitiligo Cure

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  • Shipping Timeframes: All orders are processed within 2-5 business days (excluding weekends and holidays). After your order has been processed, the estimated delivery time is before 03 Feb, 2026, depending on customs, Please note that due to high demand, some items may experience longer shipping times, which will be communicated at order confirmation email.
  • Order Processing Time: Please allow 2-5 business days for us to process your order before it is shipped . Orders placed after 16:00 on Fridays, or during weekends and public holidays, will begin processing on the next business day. Processing times may be extended during peak seasons or sales events.
  • Manufacturing Time: Some products needs manufacturing time, the manufacturing process will take approximately 10-30 business days depending on the product. This timeframe may vary depending on the complexity of the product and current demand. but this will be communicated with you during order confirmation.
  • Returns and Exchanges: We offer a 30-day return policy for most items. If you are not completely satisfied with your purchase, you may return it within 30 days of receipt for a refund or exchange. Items must be unused, in their original packaging, and accompanied by proof of purchase. Return shipping costs are the responsibility of the customer, unless the item was damaged or defective upon arrival.
1. What is the JYTOP Arrival Kernel CN-308B?

The JYTOP Arrival Kernel CN-308B is a portable 308 nm excimer laser/UVB phototherapy device designed for at‑home treatment of localized psoriasis and vitiligo patches. It delivers targeted UVB (308 nm) light to affected skin to help manage symptoms under a treatment plan.

2. How does the 308 nm excimer laser/LED UVB therapy work?

308 nm UVB light (excimer) is a high‑intensity, targeted ultraviolet B wavelength that can reduce inflammation and stimulate repigmentation in some vitiligo and psoriasis lesions. The device focuses light on affected areas, minimizing exposure of surrounding healthy skin. Always follow a clinician's guidance for use.

3. Is this device a cure for vitiligo or psoriasis?

No device can guarantee a universal cure. The CN-308B is a therapeutic tool that can improve or repigment some lesions and help control psoriasis symptoms for many patients, but results vary. Discuss expectations and treatment goals with a dermatologist.

4. Who should use this device?

The device is intended for individuals with localized psoriasis or vitiligo patches under the supervision or recommendation of a healthcare professional. Use by children, pregnant people, or anyone with a history of photosensitivity, melanoma, or active skin cancer should be discussed with a doctor first.

5. What safety precautions should I follow?

Always wear appropriate eye protection, avoid treating healthy skin, do not exceed prescribed dose or frequency, perform patch testing if recommended, and stop if you experience severe pain, blistering, or excessive redness. Consult your physician before use and follow the user manual and safety instructions.

6. How often and how long should I treat a patch?

Treatment frequency and duration depend on your skin type, condition severity, and clinician recommendations. Typical protocols for excimer therapy are individualized and may range from once to several times per week with short session durations. Follow a dermatologist's prescribed regimen rather than a fixed schedule.

7. Is the device certified and safe to use at home?

According to the product information, the device has CE certification and is classified as a Class II instrument. These indicate compliance with certain safety and regulatory requirements in applicable regions, but you should still follow medical advice and the device manual.

8. What power source does the CN-308B use?

The device is powered by electricity. Consult the product manual or seller for detailed voltage, plug type, and whether a supplied adapter or charger is included.

9. Are protective goggles or other accessories included?

The product description does not specify included accessories. Protective eyewear is essential when using UV devices. Confirm with the seller which accessories are supplied and obtain approved goggles if they are not included.

10. How soon will I see results?

Response times vary. Some users may observe improvement after a few sessions, while others require several weeks of regular treatment. Clinical outcomes depend on lesion type, duration of disease, and adherence to the treatment plan. Your clinician can provide a realistic timeline.

11. Are there any side effects?

Common side effects may include redness, mild burning, itching, or temporary hyperpigmentation/hypopigmentation. Rarely, blistering or prolonged skin changes can occur. Long‑term or improper use of UV light can increase skin cancer risk, so use only as directed and under medical supervision.

12. How do I clean and store the device?

Unplug the device before cleaning. Wipe the exterior and treatment window gently with a soft, dry or slightly damp cloth and a non‑abrasive cleaner recommended in the manual. Store in a cool, dry place away from direct sunlight and moisture. Do not immerse the device in water.

13. What is the model number and product labeling? I see CN-308B and JYT-27 referenced.

The product name refers to CN-308B, while the specification lists model number JYT-27. This can happen with internal or regional model codes. Confirm the exact model and serial number with the seller or manufacturer before purchase if you need a specific variant.

14. What warranty, shelf life, and technical support are available?

The specification lists a shelf life of 1 year and mentions online technical support. Warranty terms are not provided in the brief description—check the seller's product page or contact JYTOP customer service for details on warranty length, return policy, and technical support procedures.

15. When should I stop treatment and seek medical attention?

Discontinue use and contact your healthcare provider if you experience severe pain, blistering, signs of infection, significant or persistent skin discoloration, or any unexpected systemic symptoms. Also consult your clinician if you see no improvement after the recommended trial period.

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