Whether a desk lamp is healthy can be judged mainly from three aspects: first, whether there is stroboscopic; Second, the light is suitable; Third, there is no ultraviolet radiation.
The desk lamp with direct current is preferred, because the traditional 220V alternating current will keep the current fluctuating at 50 Hz, resulting in stroboscopic lighting. Strobe is easy to cause eye fatigue, decreased vision and deepened myopia. There is also the first choice of yellow light source, which is warm, warm, comfortable, stable and not dazzling. Then look for ultraviolet light.
Kanglvyuan 24V DC incandescent reading and writing desk lamp, the first DC incandescent reading and writing desk lamp in China, is designed and manufactured in strict accordance with the national reading and writing desk lamp standard. It was patented in China and developed by a doctor. It has no radiation, strongpoint and blue light. The color rendering index is as high as 100Ra and the color temperature is 2800k. It is the most comfortable and stable, equivalent to about 40 minutes of sunshine after sunrise. Eyes are easy to accept and protect children's eyes.