311nm UVB Phototherapy Narrow UV Phototherapy Lamp UVB Light Therapy Psoriasis For Vitiligo

Irradiation area: L×B, mm: 70×100Power supply: AC 220V/50HZ±2%  110V/60HzInput power: Weight: 1kgLight source type: Narrow band medium wave ultraviolet lamp (NBUVB)Light source band: NBUVBLamp size: H type 28×170mm, the average life is more than 3000 hours, 50% attenuation 800 hours;Number of lamps: 1 tubePlacement of the lampshade:Keep the distance between the lampshade and the skin at 3±0.5cmHow is the time of each escalation determined?1. Whether the irradiation dose (time) is increased each time in continuous treatment and the proportion of the dose (time) increase should be determined according to the treatment frequency and treatment response:a. If slight erythema appears after the previous treatment and has resolved by the time of this treatment, the dose or time of the previous radiation should be increased by 10%;c. If the erythema is still severe and accompanied by pain or even blisters at the time of this treatment, the treatment should be suspended;d. If there is no response to the previous dose, you can increase the dose or time of the previous dose by 20%, e.g., if your initial dose is 30 seconds and there is no response to the treatment after the dose, your second dose time is 36 seconds.2. How to determine the irradiation frequency?Narrow band UVB irradiation 3 to 5 times a week.Note: The product parameters distinguish between voltage 220V (50HZ) and 110V (50HZ). Please use the product under the correct voltage, otherwise, the lamp tube will not be driven. Please confirm the local voltage parameters before purchasing.