What are the important parameters of LED table lamp?

The main parameters of LED table lamp are as follows:

1, color temperature: conventional color temperature: warm white light (WW) 2700-3200K, natural light (NW) 4000-4500K, positive white light (PW) 6000-6500K, etc.;

2, power: LED bulb lamp general power is below 12W.

3, voltage and current: the commonly used voltage is 12V, 110V, 220V, 85V-265V. Current has a great influence on the light decay of LED lamps, so the stability of current is also very important. Bead current and voltage can not be too large, otherwise it will seriously affect the life of the LED lamp.

4, light efficiency: at present, the domestic use of Taiwan chip lamp pearlescent efficiency is basically 100-130LM /W.

5, light flux: light flux is mainly determined by the light efficiency and power of LED bulb lamp.

6, illuminance: lamp irradiation in the working area should be 250LX-500lX, the lowest illuminance should be ≥120lx.

7, light failure: light failure in popular words, is the bulb lamp after a certain time, how much brightness. The main factors affecting LED light failure are heat dissipation and current. Current instability, poor heat dissipation effect, light decline will be very serious.

8, chromatic aberration: chromatic aberration is the inconsistency of color temperature, generally warm white light (2700-3200K) will take into account chromatic aberration. Warm white light is what we call yellow light

9, color rendering: the light source of the color of the object itself is called color rendering, that is, the degree of color fidelity. The international Commission on Illumination (CIE) has set the sun’s color rendering index (Ra) at 100. To correctly represent the original color of matter, a light source with a high Ra value close to 100 is the best color rendering.

10. Glare: there are extremely bright objects or strong brightness contrast in the field of vision, which can cause visual discomfort called glare. Glare is an important factor affecting lighting quality.

11, service life: LED lamps and lanterns usually have a service life of more than 50,000 hours, LED is durable, because it will not produce the problem of filament fuse. Leds don’t just stop working, but they degrade over time. Heat is the main cause of LED shutdown. To extend the life of leds, the heat generated by LED chips must be reduced or dissipated.

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