Description
Kernel KN4003BL2D Portable UVB Lamp for Psoriasis Treatment - Effective UVB Phototherapy Lamp for Scalp and Skin Psoriasis, Eczema, and Vitiligo
Product Highlights
[Effective UVB Light Therapy] This phototherapy UVB lamp is specifically designed for the treatment of psoriasis, eczema, and vitiligo, providing targeted UVB light therapy to alleviate symptoms and improve skin condition.
[Perfect for Scalp Psoriasis] Ideal for treating scalp psoriasis, this lamp delivers narrowband UVB light directly to affected areas with comb, making home treatment convenient and effective.
[Premium Quality with Philips Technology] Equipped with medical-grade Philips UVB lamp, this device offers reliable and durable performance, ensuring safe and effective treatment with 311 nm narrowband light recommended by dermatologists.
Product Features
- Small size and light weight, convenient to carry
- Microcomputer timing function, improving treatment accuracy
- Equipped with comb, suitable for scalp treatment
- IP22 grade waterproof and dust-proof
- Built-in rechargeable battery, 100-240V worldwide
- Upgraded screen display comparing to KN4003BL
- One-year warranty for the entire machine, 500H for Light source
Treatment Guidelines for Phototherapy
Initial Dose & Incremental Adjustments
- Vitiligo: 150-200 mJ/cm²
- Psoriasis: 300 mJ/cm²
Body Areas and Dose Adjustments:
-
Face and Perineum: 150-180 mJ/cm²
- Increment Adjustments:
- No redness: +50-80 mJ/cm²
- Redness lasting <12 hours: +30-50 mJ/cm²
- Redness lasting 1 day: Maintain dose
- Redness lasting >1 day: Reduce dose
- Increment Adjustments:
-
Hand Palm and Foot: 400 mJ/cm²
- Increment Adjustments:
- No redness: +200 mJ/cm²
- Increment Adjustments:
-
Trunk, Limbs: 200-250 mJ/cm²
- Increment Adjustments:
- No redness: +100 mJ/cm²
- Redness lasting <12 hours: +50 mJ/cm²
- Increment Adjustments:
Instruction for Use
Pre-Treatment Steps:
1. Bathing: Take a 15-20 minute bath to remove skin scales.
2. Determine MED: Minimum Erythema Dose (MED) must be calculated before treatment.
- Kernel KN4003BL2D Lamp Intensity: 4.5 mW/cm²
- MED Formula: Irradiation Time (seconds)=Dose (mJ/cm²) ÷ Lamp Intensity (mW/cm²)
Treatment Protocols
-
Psoriasis:
- Frequency: 3-4 times/week
- Treatment session: 15-20 times
-
Vitiligo:
- Frequency: 2-3 times/week
- Treatment session: 30-50 times or more
Dose Adjustment Guidelines:
A. No Erythema or Previous Erythema Resolved:
- Increase dose by 20-25%.
B. Mild Erythema:
- Maintain the same dose or increase by 10%.
- If resolved, follow "A."
C. Asymptomatic Shiny Erythema:
- Skip one treatment, then resume with the same dose.
- Gradually increase by 10% for subsequent sessions.
D. Painful Erythema with Edema or Blisters:
- Stop treatment until recovery.
- Resume at half the previous dose.
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.
Comparison Chart
| Product Model | KN4003BL | KN4003BL2D | KN4006B | KN4006BL1D | KN5000C |
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| Name | Kernel Corded, Handheld UVB Lamp | Kernel Cordless, Portable UVB Lamp | Kernel Corded, Stationary Double UVB Lamps | Kernel Cordless, Portable Double UVB Lamps | Kernel Excimer Laser 308nm - Highest Intensity and Precision UVB Lamp |
| Application | Vitiligo, Psoriasis, Eczema, Pityriasis Rosea, Atopic dermatitis and Tinea Capitis |
– Patients with a longer history of more severe conditions, such as Vitiligo, Psoriasis, Eczema, Pityriasis Rosea, Atopic dermatitis and Tinea Capitis. – And for who have not seen any improvement from other treatments. |
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| Treatment Area | Scalp, Face, Neck, Hands and Feet | Larger Areas of Back, Torso and Limbs | Hard-to-reach areas such as elbows, eyelid, fingers and toes; neck, armpits, knees and limbs. | ||
| Lamp Intensity | 4.5mw/cm² | 4.5mw/cm² | 5.5mw/cm² | 5.5mw/cm² | 50mw/cm² |
| Treatment Size | 8.5 in² ± 10% | 8.5 in² ± 10% | 16 in² ± 10% | 16 in² ± 10% | 3.1 in² ± 10% |
| Light Source | 1 x Philips UVB Light 311nm ± 3nm | 1 x Philips UVB Light 311nm ± 3nm | 2 x Philips UVB Light 311nm ± 3nm | 2 x Philips UVB Light 311nm ± 3nm | XeCl Excimer Laser 308nm ± 2nm |
| Treatment Speed | Fast | Fast | Fast | Fast | 10X Fastest |
| Work Distance | 1.18 in ± 0.20 in | 1.18 in ± 0.20 in | 1.18 in ± 0.20 in | 1.18 in ± 0.20 in | 1.18 in ± 0.20 in |
| Power source | Corded | Cordless, Built-in Rechargeable Battery | Corded | Cordless, Built-in Rechargeable Battery | Corded |
| Light Source Lifespan | ≥ 500h | ≥ 500h | ≥ 500h | ≥ 800h | ≥ 500h |
| Package | UVB lamp, cord, UV-proof glasses, instruction | UVB lamp, charger, UV-proof glasses, instruction | UVB lamp and station, cord, UV-proof glasses and instruction | UVB lamp, distance holder, charger, UV-proof glasses and instruction | Excimer Laser 308nm, cord, 6 x shades, UV-proof glasses, 1 x aluminum case and instruction |
Details
Delivery: |
Free shipping 4 - 7 Days |
Application: |
Psoriasis, Vitiligo, Eczema, Pityriasis Rosea, Atopic Dermatitis |
Treatment Area: |
Scalp, Face, Hands and Feet |
Brand Name: |
Kernel |
Product: |
Cordless, Portable 311nm Narrowband UVB Lamp |
Model: |
KN4003BL2D |
Certificate: |
FDA Approved |
Wavelength: |
311 nm ± 3 nm |
Light Source: |
1 x Philips Light Bulb |
Light Intensity: |
4.5 mw/cm2 |
Treatment Size: |
8.5 in² ± 10% |
Treatment Speed: |
Fast |
Treatment Mode: |
Time |
Work Distance: |
1.18 in ± 0.20 in |
Built-in MED Test: |
N |
Mobility: |
Portable |
Built-in Battery: |
Y |
Battery Life after Fully Charged: |
70 min |
Power Source: |
100-240V |
Screen: |
Basic LED Screen |
Light Source Lifespan: |
≤ 500h |
Packing List: |
1 x KN4003BL2D, 1 x UV-proof Goggles, 1 x Charging Cable, 1 x User Manual |
Dimension: |
12.99'' L × 2.28'' W × 1.83'' H |
Product Weight: |
1.98 lbs |
Warranty
Product Warranty
- 1-year for the entire machine, 500 hours for the light source.
- Free parts, replacements, and shipping for manufacturer defects during the warranty.
- Post-warranty repairs can be arranged through Hey Med Supply.
Return & Refund Policy
At Hey Med, we’ve been committed to delivering quality medical supplies with heart. If you need to return a product, please review the policy below to ensure a smooth return process.
14-Day Return Policy
Customers may return eligible products within 14 days from the date of purchase for a refund or exchange. For hygiene reasons, we do not accept returns of opened or used products unless the item is faulty. Hey Med also charges 20% of restocking fee for all returns.
Eligibility for Returns
- Sealed & Unused Products: Customers can return new, unopened, and unused products in their original factory-sealed packaging for any reason.
- Defective or Damaged Products: If the product is damaged upon arrival or deemed defective, it may be returned even if unsealed.
Return Process
Initiate a Return
- Contact us via email or the contact form on our website within 14 days of purchase.
- Provide your order details, reason for return, and confirmation that the product is unused and in its original packaging.
Receive Return Authorization
- We will review your request and provide you with a return authorization within 24 hours.
- You will receive shipping instructions to complete your return.
- Unauthorized returns will not be accepted.
Ship the Product
- Pack the product securely in its original packaging, including all accessories.
- Buyers must ship the return within 5 days after receiving the return authorization.
- Buyers are responsible for shipping costs, except in cases where the product is defective or arrived damaged.
Return Verification & Refund Processing
- Once we receive and inspect the returned product, we will process a refund to your original payment method within 48 hours.
- If the item is not in "new" condition or does not meet our return policy requirements, the return may be declined.
FAQs
Who Covers Return Shipping?
- Customer-Paid Return Shipping: If returning a non-defective, unopened item, the buyer is responsible for shipping costs.
- Hey Med Supply Covers Return Shipping: If the product is defective or damaged upon arrival, we will cover the return shipping costs.
Exchanges for Defective Products
If an item is deemed defective, Hey Med Supply will ship a replacement device at no additional shipping cost.
If you have any questions or need assistance, please contact our customer support team at cs@heymedsupply.com.
Product Reviews
-
So far so good.
The device is very convenient to use, especially for treating my hairline and the scalp above my neck, thanks to its cordless design. I’ve gained a lot of confidence in managing my psoriasis using a combination of shampoo, ointment, and this photo therapy lamp. I prefer to avoid taking medications for as long as I can, and this has been working.
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Cannot wait to try it
The cordless design is perfect for me since I don’t have to deal with a cord while treating the scaly patches along my scalp line and forehead. That area has been itchy and dry, and while the cream I use helps control it, it hasn’t really improved it. My dermatologist friend recommended trying a narrowband UVB lamp, and I’m so glad I came across this device. Excited to try it out and see the results!
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The cordless works great!
I compared several models but ultimately chose this cordless version for its convenience. After about 30 sessions (3 months), I’ve noticed that the flaky skin on my scalp and elbows has smoothed out. The patches on my neck and arms have been healing more slowly, but I’m still really happy with the progress. Even though it takes time, I prefer light therapy over oral medications. Definitely worth trying.
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It Worked!
The psoriasis on the back of my neck and behind my ears flared up because I didn't apply enough sunscreen, so I started looking for a way to speed up the healing process. Thankfully, I found this UVB lamp, and after nine sessions, the irritation has started to calm down. I’ll continue using it to further improve my skin!
-
Works great!
Pros: Portable and lightweight. My arm doesn’t feel sore even after holding it up to treat my vitiligo spots on my cheeks, lips, and around my eyes. After two months of use, we’ve seen obvious improvements in those areas—less pigmentation than before, especially around my mouth. Very happy with the results! Cons: I wish the light were stronger for faster results and that the lamp were smaller to better target affected areas while protecting healthy skin.
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Easy to use.
I wasn't sure how to use it at first, but thankfully, the customer service team guided me through the process. To get the best results, you’ll need to adjust your treatment time—increasing, maintaining, or decreasing it based on how your skin reacts. Hopefully one day they can upgrade the design and people set the dose directly on the machine.
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Psoriasis on scalps and forehead
You need to be patient and consistent to see improvements in your skin, but once they appear, you’ll know the time was well worth it! The itchy, dry skin on my hairline and forehead has significantly improved, and I feel so much relief.
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Recommend!
This machine is not a facade. It achieve the same result as I did at the doctor’s office. I have used it for 3 months to treat the skin behind my ear because of it's portable. The size of red spots behind my ears reduced and less swollen.
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Scalp machine
This comb has been really helpful in treating the psoriasis on my scalp, thanks to the comb attachment. It also helps me maintain the right distance for effective use. I've noticed a reduction in dandruff and itching in only two months!
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Portable. Handheld is well made
The device is easy to use for treating spots on the back of my neck and near the scalp because it's portable. I have completed 15 sessions following the user manual and already feel much better. The irritation and pain have decreased. Customer Service cares a lot. My package wasn’t delivered without a signature requirement the first day. They proactively worked with DHL for me before I even reached out.
