1. What is the lifespan of LED lights for decades?

The theoretical lifespan of an LED light is 100,000 hours. If it is used normally, it will not be a problem for several decades. But in actual use, it always breaks down in three to five years. There are two reasons for this:

The first is that the quality of the luminous body is not good enough, and the LED lamp packaging needs to be absolutely dust-free. It's a pity that few brands can do it - a particle of dust on the lamp bead will cause the lamp bead to overload and burn out.

Second, a lot of lights are broken. In fact, it is not the illuminator that is broken, but the starter. The luminaire has a lifespan of 100,000 hours, but the starter doesn't have that long.

2. Is yellow light darker than white light?

Many people think that yellow light is darker than white light, but this is actually a misunderstanding. The reason why people think yellow light is dark is because candlelight and incandescent light emit yellow light, and at the same time, the brightness of these two light sources is not enough.

In other words, light and shade are only related to the brightness of the lamps, not the color temperature. In some special cases, the lamps are bright and even a little dazzling, but you still feel that you can't see things clearly. This is not a problem with the eyes, but the color rendering index of the lamp is not enough. For household LED lights, the color rendering index must reach at least 90.

3. Are LED lights more energy efficient than other lights?

This sentence is not entirely correct, "power saving" should be replaced with "energy saving": LED lights are more energy efficient than other lamps. In other words, it is more efficient. Emitting the same brightness, the LED light is more power efficient.

There are many users who report that the lights in their homes consume a lot of electricity, and the electricity bill is nearly 100 yuan when the lights are turned on in a single moon. It's all normal - because your standard of living has improved. In the past, incandescent lamps were used, and it was enough to have a bright light at night. At night now, the lights are bright every day. A 60W LED light consumes the same amount of power as a 60W incandescent light - but the former can make a room as bright as day, and the latter can only make it less dark.

4. Are colored LED lights dimmer?

LED lights can only emit colors in the spectrum, yellow, white, red or blue at most.

If you want the LED lights to emit pink, green and other colorful lights, you need to put a colorful cover on the outside of the lamp beads. This hood affects the spread of light, so colored fixtures feel darker. Compared with the white lights of the same power, the brightness of the lights is lower. If you want to increase the brightness, you must increase the power of the lamp (and the power consumption will also increase).

5. Why are some lamps dazzling?

All dazzling lamps have a common feature: they are dazzling when they are close to the lamps, and dark when they are far away from the lamps. This is because the illumination angle of the lamp is relatively small, and all the brightness is concentrated together.

Small-angle lamps have two purposes: the first is used in narrow spaces, such as corridors; the second is used for decorative lamps, which are specially used to project light spots on the wall. Lamps used for lighting and lighting generally do not choose such small-angle lamps. Feeling dazzling, maybe you chose the wrong one.

Does LED light save electricity or consume electricity?

The fact is, can LED lights really save electricity? The answer is: it can really save electricity! Before talking about saving electricity, we must first determine what "power saving" is. The narrow sense of "power saving" refers to "low power consumption". You drive for an hour, you consume 1 kWh, I consume 2 kWh, so you save electricity than me.

But when it is placed on electrical appliances, especially in colloquialism, the meaning of "power saving" changes. We usually refer to "high efficiency" as "power saving". For example, two people move bricks, although A eats 1 steamed bun and moves 10 bricks; B eats 2 steamed buns and moves 30 bricks. B eats more steamed buns than A, but B is more efficient, so B is said to be "more energy efficient".

The same goes for lamps. LED lights "save power" because they are more efficient. To emit the same brightness of light, the power consumption of LED lamps is lower than that of fluorescent lamps and incandescent lamps. Using the same amount of power, LED lights emit brighter light than fluorescent and incandescent lights. So the key is "brightness"! The reason why we think that the current LED lights are not enough to save power is because we have high requirements for brightness. At night, every household is as bright as day, and the power consumption is naturally high. If you use incandescent and fluorescent lamps to achieve the same brightness, I am afraid that more power will be consumed.