Features: Brand new and high quality Woods lamp is a skin diagnostic light that can be used to detect skin problems such as vitiligo and psoriasis, allowing you to detect and monitors the conditions. The lifespans of LED lamps is 40times longer than that of UVA lamps. Our Woods lamps use LED light sources, which have a wide-illumination area, are clearer, more energy-efficient and more durable. Two-levels of light intensity can be adjusted, and the clear observation port allows you to easily obtain clear observation result. Easy to use. One-button operation, no complicated-steps, simple and convenient to use; no need for goggles, direct observation. There is no need to worry about the risk of damage of the woods lamp. Specifications: Material: ABS+PC Color: White Charging voltage: 5V-1A Power output: 5W Output voltage: 3.7V Built-in battery capacity: 1500mA Visual lens diameter: φ55mm±1mm. Working distance: 10cm±3cm Life of light source: ≥15,000hours Package Includes: 1 Set Skin Analyzer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.