1. Wood lamp is a skin diagnostic light that can be used to detect skin problems such as vitiligo and psoriasis, allowing you to detect and monitor the condition .2. The lifespan of LED is 40 times longer than that of UVA . Our Wood's use LED light sources, which have a wide illumination area, are clearer, more energy-efficient and more durable.3. Two levels of light intensity can be adjusted, and the clear observation port allows you to easily obtain clear observation results.4. Easy to use: one-button operation, no complicated steps, simple and convenient to use; no need for goggles, direct observation.Charging voltage: 5V-1APower output: 5WOutput voltage: 3.7VBuilt-in battery capacity: 1500mAhVisible lens diameter: 55mm1mmWorking distance: 10cm3cm life: 15000 hoursVisual lens magnification: 3 times 20%Colour:WhiteMaterial:plasticPackage Contents:1 x Lamp1 x storage bag1 x USB Charging Cable1 x English User ManualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.