The unit is a narrowband UVB phototherapy device described around 311 nm (commonly referred to as 311nm narrowband UVB). The product listing also references 308nm in the name; if you need a specific certified wavelength for medical use, confirm with the seller or Yonker before purchase.
The device is marketed for management of psoriasis, vitiligo, herpes, and eczema. The listing also mentions 'silver carp' which appears to be a mistranslation — consult the manufacturer or your dermatologist for appropriate indications.
The unit is a Class II instrument designed for home use, but phototherapy can carry risks. Always read the user manual, wear proper eye protection, follow recommended exposure guidelines, and consult a dermatologist before beginning self-treatment.
The specified working distance is 3 ± 0.5 cm. Maintaining the correct distance is important for delivering the intended dose and obtaining consistent results. Use the spacing guidance in the manual or as recommended by your clinician.
Before first use, read the manual and consult your dermatologist. Typically start with a short exposure or a low prescribed dose (patch test area), wear protective goggles, monitor the skin response for 24–48 hours, and only increase exposure per medical guidance.
Yes. Direct exposure to UV can damage the eyes and skin. Always wear appropriate UV-blocking goggles, cover or shield non-treated skin, avoid looking at the lamp, and do not exceed recommended exposure times.
Many medications increase sensitivity to UV light. If you are taking any drugs (including antibiotics, retinoids, or certain herbal supplements), check with your prescribing clinician before using UV phototherapy.
Possible side effects include redness, itching, blistering, tanning, dry skin, or temporary worsening of symptoms. Serious reactions are uncommon but possible. Stop treatment and consult a healthcare provider if you experience severe irritation or blistering.
Model: YK-6000 (Brand Yonker). Size: 276 × 53 × 45 mm. Weight: 1.21 kg. Working voltage: 110V or 220V, Frequency: 50 Hz. Working distance: 3 ± 0.5 cm. Single package size: 40 × 25 × 10 cm; gross weight ~2.0 kg.
The product description lists it as a Class II instrument, but specific certifications (CE, FDA, ISO) and warranty terms are not provided in the listing. Contact Yonker or the seller for documentation and warranty details before purchase.
Unplug the device before cleaning. Wipe the exterior and lamp cover gently with a soft, dry or slightly damp cloth; do not allow liquids to enter the unit. Store in a cool, dry place away from direct sunlight and extreme temperatures.
Use in children or during pregnancy should only be done under direct medical supervision. Consult a pediatrician or obstetrician familiar with phototherapy before use.
Many topical treatments are used in combination with phototherapy, but some topicals or photosensitizing agents can alter UV response. Discuss your topical regimen with your dermatologist to ensure safe and effective combined use.
The listing indicates a single item is sold; specific accessories (power cord, goggles, manual) may vary. Replacement lamps or spare parts are not specified — contact the seller or Yonker for available accessories and replacement parts.
Stop using the device immediately, protect the area from further UV exposure, and seek medical advice. For severe reactions (large blisters, intense pain, signs of infection) seek urgent medical attention.
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