Description
Business Transparency
Kernel, founded in 1997, is dedicated to research, development, and manufacturing in the high-tech medical equipment industry, with leading innovations in UV phototherapy devices, colposcopes, and PDT photodynamic therapy devices.
Headquartered in Jiangsu, China, Kernel has offices in more than 30 countries and regions worldwide and is widely praised for its quality, effectiveness, and after-sales service. Kernel's products have been approved by the FDA, CE, and ISO 9001. Ahead of its peers in the medical equipment field, Kernel is also a supplier to the United Nations.
308nm Excimer LED Treatment Plan
-
Kernel KN308E Intensity: 60 mw/cm²
- MED Formula: Irradiation Time (seconds)=Dose (mJ/cm²) ÷ Lamp Intensity (mW/cm²)
14-Day Return Policy
- Customers may return eligible products within 14 days of delivery for a refund or exchange.
- For hygiene and safety reasons, opened or used products cannot be returned unless defective or faulty.
- A 20% restocking fee applies to all returns except defective. We will repair, replace, or refund defective items free of charge.
- For full details, please refer to our Return Policy under the Warranty tab.
Comparison Chart
| Specification | KN4003B3 | KN4003B4 | KN5000C | KN308E | KN5000D |
|---|---|---|---|---|---|
 |
 |
 |
 |
 |
|
| Name | Portable 308nm Excimer LED UVB Lamp | Portable 308nm Excimer LED UVB Pro Lamp | 308nm Excimer Laser | 308nm Excimer-like UV LED | 308nm Excimer Laser Pro |
| Setting | Home, domestic & international travel | Home, domestic & international travel | Clinics, hospitals & home | Clinics, hospitals & home | Clinics & hospitals |
| Price | $649.00 | $800.00 | $2,700.00 | $3,039.00 | $4,100.00 |
| Application | Localized vitiligo, moderately severe localized psoriasis, eczema, atopic dermatitis, pityriasis rosea & other autoimmune skin conditions unresponsive to topical treatments | Patients with long-standing or severe conditions, including vitiligo, psoriasis, pityriasis rosea, atopic dermatitis (eczema) and tinea capitis. Patients who have not responded to prior treatments. | |||
| Ideal for Areas | Face & neck, Hands & feet, Small localized patches on limbs & torso | Face & neck, Hands & feet, Small localized patches on limbs & torso | Entire body, especially skin folds like elbows, eyelid, armpits, fingers, knees & toes | Entire body, especially skin folds like elbows, eyelid, armpits, fingers, knees & toes | Entire body, especially skin folds like elbows, eyelid, armpits, fingers, knees & toes |
| Treatment Speed | 6.7X Faster | 8.8X Faster | 10X Fastest | 12X Fastest | 11X Fastest |
| Lamp Intensity | 30 mW/cm² | 40 mW/cm² | 50 mW/cm² | 60 mW/cm² | 55 mW/cm² |
| Light Source | 1 × 308nm UV LED | 1 × 308nm UV LED | 308nm XeCl Excimer Laser | High-power 308nm UV LED | 308nm XeCl Excimer Laser |
| Treatment Size | 1.24 in² | 1.24 in² | 3.1 in² | 3.1 in² | 3 in² |
Warranty Information
UVB Lamps – Warranty & Return
Product Warranty
- 1-year warranty on the device
- 500-hour warranty on the UV light source
- Includes free parts, replacements, and shipping for manufacturer defects
- Post-warranty repairs may be arranged through Hey Med Supply
This warranty complies with the Magnuson–Moss Warranty Act, which requires that all terms be clearly disclosed.
14-Day Return Policy
- Returns accepted within 14 days of delivery for a refund or exchange.
- Opened or used products cannot be returned unless defective.
- A 20% restocking fee applies to all returns except defective.
- We will repair, replace, or refund defective items free of charge.
Eligible Returns
- Sealed & Unused: The device, original packaging, and all accessories (including user manual and UV-protective glasses) must be in new, unused, and undamaged condition.
- Defective or Damaged: Products that arrive defective or damaged may be returned, even if opened, as long as the issue is reported within 14 days.
Ineligible Returns
We are unable to accept returns if:
- The return is not authorized in advance
- The request is made after 14 days of delivery
- The return is shipped back more than 5 days after receiving authorization
- The product is no longer in “new” condition, including:
- Devices that are damaged
- Missing or damaged original packaging
- Missing or damaged accessories
- Retail packaging with shipping labels or markings applied directly
How to Return
- Initiate a Return
- Contact our team via email or through our website within 14 days of delivery.
- Complete the return form. Reply to your order confirmation email with the form attached, along with any additional details you'd like to share.
- Receive Authorization
- We will respond within 24 hours with approval and return instructions.
- Unauthorized returns will not be accepted.
- Ship Back the Product
- Repack the item with all original components and undamaged, original packaging.
- Place the product box inside a separate shipping box for protection during transit.
- Do not apply labels directly to the product packaging.
- Ship the return within 5 business days of receiving authorization.
- Customers are responsible for return shipping unless the item is defective or damaged.
- Receive Refund
- Refunds are processed within 48 hours of return inspection.
- We reserve the right to refuse returns showing signs of misuse or wear.
- Please allow 2–3 business days for the refund to appear in your account.
- Returns that do not meet our policy criteria may be declined.
Regulatory Compliance
Hey Med Supply complies with all relevant U.S. consumer protection and FDA regulations, including:
- Magnuson–Moss Warranty Act (clear warranty terms and dispute resolution)
- FDA Quality System Regulation (21 CFR Part 820) (device servicing and safety)
- 21 CFR Part 806 (reporting of medical device corrections or recalls)
- Applicable state laws requiring conspicuous return policy disclosures
Product Details
- Delivery:
- 7 to 10 days delivery (Ships directly from the manufacturer)
- Application:
- Vitiligo, Psoriasis, Eczema, Pityriasis Rosea, Atopic Dermatitis
- Setting:
- Clinics and Hospitals
- Brand Name:
- Kernel
- Product:
- Portable Excimer LED for Clinics
- Model:
- KN308E
- Certificate:
- FDA Approved
- Wavelength:
- 308 nm ± 3 nm
- Light Source:
- High-power UV LED
- Light Intensity:
- 60 mw/cm²
- Treatment Size:
- 3.1 in² ± 10%
- Treatment Speed:
- 13x Fastest
- Treatment Mode:
- Time and Dosage
- Work Distance:
- 1.18 in ± 0.20 in
- Built-in MED Test:
- Y
- Mobility:
- Portable
- Built-in Battery:
- N
- Power Source:
- 100-240V
- Screen:
- 10.4'' LCD touch screen
- Light Source Lifespan:
- ≤ 30,000h
- Packing List:
- 1 x KN308E, 1 x UV Goggles, 1 x Charging cable, 6 x Interchangeable Tips, 1 x User Manual
- Dimension:
- 17.72'' H x 11.81'' D x 9.84'' W
- Product Weight:
- 19.84 lbs
Product Videos
Reviews
1 Review
-
This is amazing!!!!!! Highly Recommend this shop
They delivers quality you can trust. Affordable and dependable every time.
