311nm NB-UVB Home Phototherapy Lamp, Philips Lamp, BU-1S
311nm NB-UVB Home Phototherapy Lamp, Philips Lamp, BU-1S
A lightweight 311nm narrowband UVB device powered by a Philips PL-S 9W/01/2P lamp, designed for simple and convenient home phototherapy.
In stock
Product Features
Product Specifications
Model: BU-1S, Powered by Philips PL-S 9W/01/2P.
Dimensions: 300 × 55 × 45 mm
Weight: 0.48 kg
Emission peak: 311 nm (narrowband UVB)
Irradiance: ≥ 7 mW/cm²
Manufacturer: Youwemed
Package Includes: BU-1S unit, Philips UVB lamp (installed), light comb, goggles.
How To Use?
1. Start time: 30 seconds (half the children).
2. Erythema criteria: Check the skin response before each session and adjust the next exposure time accordingly.
3. Dose adjustment: Increase, maintain, or pause exposure depending on the erythema response.
4. Frequency of exposure: once every other day, 3-4 times a week.
Important: UVB exposure time and frequency vary by individual. Follow your dermatologist or healthcare professional’s recommended treatment schedule and do not increase exposure time without professional guidance.
Treatment Summary
Initial irradiation
Suggested first exposure time: 30 seconds.
Complete the first session during this time window.
Check skin response
Pause exposure
Continue to evening assessment
Continue to evening assessment
Second-day decision
Pause exposure
Irradiation: increase time by 15%
Irradiation: increase time by 20%
Third-day decision
Irradiation: maintain the last exposure time
Irradiation: increase time by 10%
311nm Optical Performance & Quality Control
Focused 311nm Output
Uses a Philips narrowband UVB lamp with a peak wavelength around 311nm for targeted phototherapy applications.
Consistent Light Performance
The optical system is designed to provide consistent UVB output during normal operation.
Uniform Light Distribution
Designed to distribute UVB light evenly across the 48 cm² irradiation area.
Focused 311nm Output
Uses a Philips narrowband UVB lamp with a peak wavelength around 311nm for targeted phototherapy applications.
Consistent Light Performance
The optical system is designed to provide consistent UVB output during normal operation.
Uniform Light Distribution
Designed to distribute UVB light evenly across the 48 cm² irradiation area.
UVB Phototherapy Device Comparison
Side‑by‑side look at features, specifications and price — YOUWEMED highlighted for value.
| Feature |
YOUWEMED
Best Value
|
Competitor A
|
Competitor B
|
Competitor C
|
Competitor D
|
|---|---|---|---|---|---|
| Price (USD) | $179 | $1,375.30 | $303.88 | $299 | $399.99 |
| UVB Wavelength | 311 nm NB‑UVB (Peak 311 nm) | Narrowband UVB + UVA interchangeable | 311 nm NB‑UVB | 311–312 nm NB‑UVB | 311 nm NB‑UVB (Peak 311 nm) |
| Lamp Model | Philips PL-S PW/01/2P | 1 High‑Intensity Lamp | Dermfix 9 W UVB 311 nm Fluorescent | Philips PL‑S9W/01/2P | Philips Narrowband UVB Bulb |
| Lamp Life | ~800 h | — | ~400 h | 500 h | ~1,000 h |
| Treatment Area | 48 cm² | — | — | 48 cm² | 5 cm × 2 cm |
| Control Mode | Time Mode | DT Time Mode | Time Mode (External Timer) | One‑Button / Continuous + Intermittent | Time Mode (Built‑in Digital Timer) |
| Display | Button | Built‑in Digital Timer | External LCD Timer | Basic LED + Built‑in Timer | LCD Screen + Digital Timer |
| Weight | 0.48 kg | 0.8 kg | 1.1 kg | 0.74 kg | — |
| Certifications | CE, ISO 13485, ISO 9001,FDA | — | European Class IIa | CE, FDA | FDA, FCC, CE |
Specifications based on manufacturer data. Prices are official MSRP in USD.
FAQs
You have questions, we have answers.
How long does vitiligo phototherapy usually take?
Treatment time varies by the size, location, and age of the white patches. Facial areas often respond faster, while hands and fingers may take longer. Many users continue phototherapy for several months.
Do I need protective glasses when using the BU-1S?
Yes, UV-protective eyewear is recommended during treatment. Never look directly at the UVB light or point the operating lamp toward the eyes.
When can I expect to see the first signs of repigmentation?
Some users may begin to notice small areas of repigmentation after about 1–4 months of consistent treatment. Results vary depending on the treatment area and individual skin response.
Can pigmentation disappear again after successful repigmentation?
Yes, repigmented areas may lose pigment again, especially if vitiligo is still active. Continued observation and maintenance treatment may be recommended after improvement.
Can the BU-1S be used around the eyes?
Yes, but extra care is needed because the skin around the eyes is thinner and more sensitive. Keep the eyes fully closed and use shorter exposure times when treating this area.
Can I use the BU-1S during summer?
Yes, but avoid combining intensive sunlight with UVB treatment. If the skin is sunburned or irritated, wait until it has recovered before continuing phototherapy.
When can I restart UVB treatment after redness or sunburn?
Wait until redness, pain, swelling, or irritation has fully subsided. If blistering occurs, stop treatment and allow the skin to recover before restarting with a shorter exposure time.
Why didn’t my skin become red after the first BU-1S treatment?
This is normal because the first sessions use a short starting time to test skin response. The BU-1S guide starts at 30 seconds, then exposure can be gradually increased if no erythema appears.
All good. I have bought this item before and I can say that it is effective in therapy. The downside is that there comes a time when the PHILIPS bulb no longer pigments, it only turns on and even darkens the skin, which makes the treatment less effective. It would be ideal to replace the bulb once the 800 hours of use have been completed.
The product has just arrived. Shipping was fast. I ordered it on 06.11.25 and it arrived in azerbaijan on 19.11.25. The packaging was great — everything was so well protected that even the product box arrived in perfect condition. I plugged it in and it works. I bought it for myself. I will update my review about the treatment results after i use it for some time.
This product is so good
The lamp is in good working order and can be turned on; it is confirmed to be an ultraviolet lamp. Time will tell how effective it is for treatment.
Perfect.
A very powerful device, but be careful with its duration on the body; it caused me discomfort.
Honestly, I thought it would be more complicated, but it’s basically plug it in, press the button, and it’s on. The light comes on right away with no annoying flickering. It’s also much lighter than I expected, which is a big plus.
Smaller and lighter than I expected, which makes it easy to store and carry. The detachable comb is also useful when positioning the light around areas with hair. Overall, a practical little device.
I like that it doesn't take up much space. It's easy to store when I'm not using it and much more convenient than having a large piece of equipment at home.
I was looking for a reasonably priced UVB lamp for home use and decided to give this one a try.It's fairly basic, but that's all I really needed. So far, it's been a practical choice.
I have used the product a few times and have not had any issues; I will continue to use it.
Very straightforward to use.There aren't a lot of complicated settings, which I actually prefer. It only took me a few minutes to figure everything out.
The order took nearly 20 days to arrive; it seems customs was the reason. Everything was very well packaged—the cardboard box containing the device was placed inside a bubble wrap bag. In addition to the device itself, the package included a carrying case for the device, a carrying case for the adapter, a pair of glasses, the adapter manual, and a product information sheet. The device powers on and is currently working properly. Thank you to the seller. I recommend this seller.
Arrived as described in the specifications, delivery was delayed by 3 days, but the main thing is that the package is intact. For now, I can give a 5+ rating based on the usefulness of this device in treating psoriasis.
It arrived in perfect condition, quickly and without complications. This is appreciated as this product is difficult to ship.
The light fixture is high-quality, easy to use, and arrived in perfect condition. It works great. Highly recommended!
Thank you to the manufacturer and seller for their excellent service!
I hope it's good, I'm encouraged by the recommendations with artificial intelligence and the reviews. I will update my review after some time since I've only used it twice.
It arrived very well protected, which is appreciated.
I didn't need to communicate with the seller, so I can't say anything. What I can say is that it took less time than the estimated time.
Thank you very much
Excellent
It seems good. I hope it works for me.