Description
Comparison Chart
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.
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 Return Policy under the Warranty tab.
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:
- Free shipping 2-3 days
- Application:
- Psoriasis, Vitiligo, Eczema, Pityriasis Rosea, Atopic Dermatitis
- Treatment Area:
- Larger Areas Like Back, Torso and Limbs
- Brand Name:
- Kernel
- Product:
- Corded, Stationary 311nm Narrowband UVB Lamps
- Model:
- KN4006B
- Certificate:
- FDA Approved
- Wavelength:
- 311 nm ± 3 nm
- Light Source:
- 2 x Philips Light Bulb
- Light Intensity:
- 5.5 mw/cm2
- Treatment Size:
- 16 in² ± 10%
- Treatment Speed:
- Faster
- Treatment Mode:
- Time
- Work Distance:
- 1.18 in ± 0.20 in
- Built-in MED Test:
- N
- Mobility:
- Corded
- Built-in Battery:
- N
- Power Source:
- 110V(60Hz)
- Screen:
- Basic LED Screen
- Light Source Lifespan:
- ≤ 500h
- Packing List:
- 1 x KN4006B, 1 x UV-proof Goggles, 1 x Charging Cable, 1 x User Manual
- Dimension:
- 7.09'' L× 7.48'' W× 15.75'' H
- Product Weight:
- 3.97 lbs
Product Videos
Reviews
31 Reviews
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Stationary Design is so helpful
If you have psoriasis on the back of your hand and wrist, the 4006B is likely a better choice than the 4003BL2D because you can let the lamp stand on its station.
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Works great
It works great for home use! It took me about five weeks to see improvements in my skin, and the pigmentation on my fingers and palm are shrinking.
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It works
I was initially worried that the lamp might be too heavy, but that’s not the case at all. It’s lightweight yet well-built and compact. The lamp size is perfect for treating the psoriasis on my legs. I plan to use it three times a day and see how my skin responds. Excited to track the progress.
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Convenient & Effective. Huge Relief for My Skin.
The stationary design makes it easy to treat my front legs, and I love that I can detach the lamp to reach the back of my legs and my ankles. After about 30 days of use along with moisturizers, my dryness and itching have significantly decreased. The inflammation has gone down too.
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Good
I had been searching for the KN-4006B in several places but decided to order from Hey Med because it seemed like a more reputable shop. The machine was delivered in just two days and was well-packaged. Excited to try it out and see the results!
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Fast delivery and effectiveness
The irritation has significantly decreased after just 14 days of use. Be sure to shield your eyes with the glasses that included in the package for safety.
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Works great!
Would recommend.
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Great Device!
The lamp was larger than I expected but still lightweight. The quality is good. A friend recommended it to me, so I’ll try it out and see how it goes.
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Convenient
I love the hands-free design. It stays securely in place. I can just relax during the treatment without constantly adjusting my grip or positioning to treat my shoulders and back. After a few weeks of use, I’ve already noticed significant improvements on the psoriasis patches. My skin feels much better. After a few weeks of use, I’ve already noticed significant improvements on the psoriasis patches. My skin feels much better.
