LED the desk lamp that shield an eye the choose and buy, should consider what respect?
Mainly has three aspects, 1 eligible product safety certification mark, confirm will not leakage, fire, scald risk factors such as user. 2 should have LED the desk lamp that shield an eye anti-glare light shade design, because LED is point-blank light, let the glare stimulate an eye for a long time can cause eye diseases, and even lead to amblyopia. 3 products must have a switch power drive leds, because there is no switch power drive LED desk lamp is used resistance capacity step-down power supply, easy to leakage, and we have 100 hz frequency flash light, no eye.
Now is better the desk lamp that shield an eye to choose the low voltage dc power supply, safe, no electric shock hazard Cold light source options, select light source, high brightness, high luminous efficiency/low energy consumption, no ultraviolet and infrared radiation. Also need to consider the color rendering index of lamps, light color rendering index is 100, color rendering index of desk lamp, the more close to the sun color rendering index, adaptable people eyes, eyes, vision health. With and without glare is also an important standard, because dizzy light is one of the important reasons of causing visual fatigue, can choose light measurement, the desk lamp of surface light source, because traditional desk lamp can directly see light point, more dazzling, side light can't see the markers, the light is downy, uniform. Select the adjustable brightness or color temperature LED the lamp that shield an eye, because of different scenarios, different weather, the brightness of the light or there will be a certain color temperature, on-demand light distribution, science more eye. (I had to use of the lamp, can consider)
Optical processing, due to the LED lamps are using LED chips as light source, belong to the point light source, so the reasonable optical processing technology is very necessary.
Brightness, brightness is too light or too dark can cause eye fatigue, so appropriate brightness is very necessary, we suggest electrodeless lamp dimming
LED the desk lamp that shield an eye the choose and buy, should consider factors: 1. The national 3 c compulsory certification. To avoid buying small workshops LED desk lamp with a less known and inferior brand. 2. The color temperature, color temperature is too high will feel the light pale, will feel anti; Color temperature is too low, the light is yellow, the eyes will easily tired; The most appropriate color temperature is around 5000 k color temperature, light yellow light.
