led ceiling light specifications parameters size power

What are the main parameters of LED ceiling light?

1. Color temperature 2113: The normal color temperature is warm white light (WW) 2700-3200k, natural light (NW) 4000-4500K, positive white light (PW) 6000-6500K, cool white light (CW) 7000-7500k.

2. Power: The general power is shown in the chart and can be selected.

3. Voltage and current: The voltage is 12v, 110v, 220v. The current is divided into input current and lamp bead current. The input current can be tested with the power supply. Different powers are different, and the instrument shall prevail.

4. Light efficiency: It is a very important factor for LED ceiling lamps. The luminous efficiency of lamp beads using Nichia, Cree and other chips is generally about 150-0Lm/W.

5. Luminous flux: The luminous flux is mainly determined by the luminous efficiency and power of the LED bulb, which is generally measured with an integrating sphere.

6. Illuminance: the unit is lux, the English is Lux, and now it can also be abbreviated as Lx. The illuminance produced by 1 Lm of luminous flux evenly distributed on a 1 square meter surface.

7. Light decay: How much does the brightness of the LED light drop after a certain period of use. The main factors affecting the decay of LED lights are heat dissipation and current. The current is unstable, the heat dissipation effect is poor, and the light decay will be very serious.

8. Color difference: Color difference is the inconsistency of color temperature. Generally, warm white light (2700-3200k) will consider the color difference.

9. Color rendering: The degree to which the light source presents the color of the object itself is called color rendering, that is, the degree of color fidelity; the color rendering of the light source is indicated by the color rendering index, which indicates that the color of the object under light is better than that of the reference light. (Sunlight) The deviation of the color during illumination can more comprehensively reflect the color characteristics of the light source.

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