What are the important parameters of an LED smart desk lamp?

What are the important parameters of an LED smart desk lamp?

The main parameters of the LED smart desk lamp are as follows in 11 aspects:

1. Color temperature: Conventional color temperature: Warm white light (WW) 2700-3200k, natural light (NW) 4000-4500K, pure white light (PW) 6000-6500K, etc.

2. Power: The general power of LED bulbs is below 12W.

3. Voltage and current: Commonly used voltages are 12v, 110v, 220v, and 85v-265v. The current has a significant impact on the light attenuation of LED lamps, so the stability of the current is also very important. The current and voltage of the pearl should not be given too high values; otherwise, it will seriously affect the service life of the LED lamp.

At present, the luminous efficacy of domestic lamp beads using chips from Taiwan, China is basically around 100-130 lm /W.

5. Luminous flux: Luminous flux is mainly determined by the light effect and power of LED bulbs.

6. Desktop illuminance requirements: The working area illuminated by the desk lamp should be 250lx-500lx, and the low illuminance should be ≥120lx.

7. Light attenuation: In layman's terms, light attenuation refers to the extent to which the brightness of a bulb lamp decreases after it has been in use for a certain period of time. The main factors affecting the light decay of leds are heat dissipation and current. If the current is unstable and the heat dissipation effect is poor, the light attenuation will be very serious.

8. Color difference refers to the inconsistency of color temperature. Generally, for warm white light (2700-3200k), the issue of color difference is taken into consideration. Warm white light is what we usually call yellow light

9. Color rendering: The degree to which a light source shows color to an object itself is called color rendering, that is, color fidelity. The International Commission on Illumination (CIE) has set the color rendering index of the sun at 100. To accurately represent the original color of substances, a light source with a high color rendering index (Ra) is required, whose value is close to 100, indicating good color rendering. If there are extremely bright objects or strong brightness contrasts within the field of vision, it can cause visual discomfort, which is called glare. Glare is a crucial factor affecting the quality of lighting.

11. Service life: The service life of LED lights usually exceeds 50,000 hours. The reason why leds are durable is that they do not cause the problem of filament melting. Light-emitting diodes do not stop working but will deteriorate over time. Thermal energy is the main reason for the halt of LED production and operation. To extend the service life of the LED network, it is necessary to continuously reduce or dissipate the thermal energy that the LED chip can generate.