Kernal KN-4003BL2D UVB Lamp Light Treatment for Psoriasis

Portable Narrowband UVB Phototherapy Device for Home Treatment

Available to beauty clinics and dermatology practices for prescribing to patients as a long-term at-home solution.

The KN-4003BL2D is a compact, DC-powered narrowband UVB phototherapy device built around a genuine Philips UV bulb. Designed specifically for ease of use outside a clinical setting, it is positioned for home-use phototherapy under physician guidance, with an optional Bluetooth connection for smartphone app interaction.

Certification: FDA 510K cleared, CE MDR

Indications

The KN-4003BL2D is positioned for phototherapy workflows involving:

• Vitiligo
• Psoriasis
• Eczema
• Pityriasis rosea

Treatment protocols and suitability should be determined by the treating physician. This device is intended for use as directed by a healthcare provider, including for at-home maintenance phototherapy where clinically appropriate.

Light Source

Original Philips UV Bulb The device uses a genuine Philips 9W UV bulb as its light source, selected for high stability and long operating lifespan.

Key Features

Designed for Home Use Simple, accessible operation is built around at-home treatment, allowing patients to continue phototherapy sessions outside a clinic setting as directed by their physician.

Dustproof Protection Cover A dustproof design helps keep treatment safer and supports a longer bulb lifespan.

Optional Bluetooth & App Connectivity An optional Bluetooth function allows the device to interact with a companion smartphone app, supporting features such as treatment tracking directly from a patient's phone.

DC Power with Rechargeable Battery The device runs on DC power via a rechargeable battery, making it easier to operate without being tethered to an outlet and simple to carry between rooms or while traveling.

Treatment Record Management Built-in treatment record management supports both physician oversight and patient self-tracking, helping keep a history of sessions over time.

Adjustable LCD Screen The LCD screen's viewing angle can be adjusted to suit the user's position during treatment.

Timer Function A built-in timer helps users track session progress and stay within their prescribed treatment time.

Comb Attachment for Scalp Treatment A unique comb-style attachment is included, extending the device's use beyond the face and limbs to scalp treatment — parting hair for more direct light contact.

Technical Specifications

Frequently Asked Questions

Is this device intended for home use? Yes. The KN-4003BL2D is specifically designed for use outside a clinical setting, for patients following a physician-directed home phototherapy plan.

What is the Bluetooth function used for? It's an optional feature that lets the device interact with a companion smartphone app.

What is the comb attachment for? It allows the device to part hair for more direct scalp treatment, in addition to standard use on the face and limbs.

How is the device powered? It runs on DC power via a rechargeable battery rather than requiring a constant wall connection.

How does this compare to the KN-4003BL2? Both are compact, Philips-lamp NB-UVB devices with the same footprint and irradiation specs. The KN-4003BL2D adds DC/rechargeable battery power and optional Bluetooth app connectivity, positioning it more specifically for home use, while the KN-4003BL2 is described as suited to both home and travel/business-trip portability.

ONE (1) YEAR LIMITED DEPOT WARRANTY 

1. Warranty Provider and Term

This warranty is provided and administered strictly by the manufacturer of this particular product, not by Medaza, Inc. The manufacturer warrants to the original purchasing entity ("Buyer") — including hospitals, clinics, and other licensed medical institutions within the United States — that the hardware product sold shall be free from defects in materials and workmanship under normal clinical use for a period of one (1) year from the date of shipment. This warranty is provided in addition to, and does not affect, any rights the Buyer may hold under applicable state or federal law.

2. Depot-Only Return Procedure

Warranty service is strictly a depot-return process conducted directly by the manufacturer of this particular product.

• First Step (Intake): To initiate a warranty claim, the Buyer must not contact the manufacturer directly. The Buyer must first contact Medaza, Inc. by email at contactusa@medaza-platform.com.
• Delegation: Upon receipt of the email, Medaza, Inc. — acting in its capacity as distributor — will delegate and coordinate the direct connection between the manufacturer (or the manufacturer's designated U.S. Initial Importer, where applicable) and the Buyer, facilitating return logistics and securing the required Return Merchandise Authorization (RMA) number.
• Shipment: No shipments will be accepted by the manufacturer's facility without an active, authorized RMA number. The product must be securely packaged in its original packaging (or equivalent protective packaging), with all patient-identifying information removed or de-identified in accordance with the Health Insurance Portability and Accountability Act (HIPAA) and other applicable privacy laws prior to shipment, and shipped directly to the designated service facility of the manufacturer.

3. Allocation of Shipping Costs (Two-Way Shipping)

The Buyer assumes full financial responsibility for all shipping logistics, packaging, handling fees, customs/tariffs, and insurance transit costs associated with the warranty claim. This includes:

• Inbound Shipping: The cost to safely transport the product from the Buyer's facility to the designated service location of the manufacturer.
• Outbound Shipping: The cost to return the repaired or replaced product from the manufacturer's facility back to the Buyer's designated location within the United States.

4. Recall & Systemic Defect Exception

The shipping cost allocation in Section 3 shall be waived solely in the event that the returned product is officially determined by the manufacturer, its designated U.S. Initial Importer, Medaza, Inc., or the FDA to be subject to a Recall, Safety Alert, or a verified batch-wide Systemic Manufacturing Defect, in accordance with 21 CFR Part 806 (Medical Device Reporting: Corrections and Removals) and related FDA recall procedures. In such extraordinary circumstances, the manufacturer will cover standard two-way ground shipping costs.

5. Warranty Exclusions

This warranty does not cover:

• Disposable clinical consumables (including but not limited to needles, sutures, applicators, and single-use accessories) once packaging is opened.
• Damage caused by accident, abuse, liquid spills, improper sterilization or disinfection, neglect, patient misuse, or unauthorized modifications or repairs.
• Damage resulting from use outside the manufacturer's labeled indications, intended use, or instructions for use (IFU).
• Normal wear and tear, consumable component degradation (e.g., lamps, filters, probes), or cosmetic degradation that does not affect device function or safety.
• Any device on which the serial number, UDI (Unique Device Identifier), or product identification label has been removed, altered, or defaced.

6. Adverse Event Reporting

Nothing in this warranty limits or replaces the Buyer's independent obligation, as a healthcare institution or professional user, to report device malfunctions, serious injuries, or adverse events involving this product to the manufacturer, to the manufacturer's designated U.S. Initial Importer (where applicable), to Medaza, Inc. as distributor, and, where required under 21 CFR Part 803 (Medical Device Reporting), to the FDA (e.g., via MedWatch). Medaza, Inc. will cooperate with the manufacturer, the Initial Importer, and the FDA on any resulting investigation, corrective action, or reporting obligation.

7. Distributor Obligations Notice

For this product, Medaza, Inc. acts solely as a distributor; a separate entity — not Medaza, Inc. — handles importation and fulfills any applicable U.S. Initial Importer obligations under FDA regulations for this manufacturer's products. As distributor, Medaza, Inc. confirms it verifies that the device bears the required labeling and UDI, that it is accompanied by the manufacturer's required documentation, and that appropriate storage and transport conditions are maintained while the product is under its responsibility. This warranty does not alter or diminish those regulatory obligations, nor does it impose importer obligations on Medaza, Inc.