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I have always felt that "the LED light is dark and expensive". Only by replacing it with a new light can I completely subvert the cognition

Time:

2022-08-18

The hardbound houses that my family bought at the beginning were all supplied by the developers. At first, I felt that the pendant lamp was quite tall, but I slowly found something wrong - it would cost nearly 100 yuan to turn on the lamp every month. And the room is very dark. Is this the common fault of "LED"?

Recently, under the persuasion of a friend, I finally made up my mind to place a new light on JD. After a period of time, I realized that the LED was not bad, but the original light was bad. Choosing the wrong light will really damage the living experience!

Today, let's talk about the problem of the old lamp and the correct selection method.

"Question 1" Lamp shape

In fact, the power of the old lamp is not low. Each bulb is 9W, a total of 8 bulbs, adding up to 72W. But why is it so dark? The main problem is the shape of the lamp.

In my original lamp, the lamp mouth is upward. The shape design of the bulb is very particular. In order to improve efficiency, it will be specially made into a shape that is conducive to forward lighting. When the lamp mouth is upward, the light from the bulb will first shine on the ceiling. It can only be reflected into the room through the ceiling. With one more step, the brightness will be greatly reduced.

In addition, the luminous efficiency of LED bulbs is also much lower than that of LED lamp beads.

This is because each LED bulb is an independent working system. It has rectifier, capacitor and other devices inside. The cost is high, and it is easy to get hot.

The lamp bead plate is a set of starters shared by a large number of lamp beads, which solves the heating and cost problems from the root. Moreover, the distribution range of lamp beads is wider. Like this set of Yueli LED ceiling lamp I bought, the maximum side length exceeds 1m.

With a wide range of illumination, the light will be uniform, and many lighting dead spots will be reduced in the room. Working, living and studying in a room with uniform light can avoid eye fatigue. On the contrary, the flickering environment will aggravate the irritation of light to the eyes. The larger the area and the lower the floor height, the more need to consider the problem of light uniformity.

"Question 2" Brightness and color temperature

In fact, I am not willing to throw away the old lamp, so I also modified it: the light bulb used to emit yellow light. I thought the color temperature caused the room to be too dark, so I changed it to white light.