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After 3·15, I have a lot of postures? Although there is no LED anecdote at the party, but as a guy who is used to illuminate every day, the old rookie can't help but ask, LED bulbs will you really choose? It’s difficult to choose a variety of LED brands and products on the market. The old rookie teaches you to "see one, two, and three to see", learn this method, choose the lamp! Before teaching, the old rookie has a lot of mouths, and the LED bulbs for a few dollars are still not selected. This kind of thing is the same at home with a time bomb!
a trip
Oh, it’s the weight. In the case of the same wattage, almost the shape of the material, the size is also similar, of course, choose the heavier one!
Second listening
After lighting the LED bulb, the ear is close to listening, and there is a clear "beep" sound.
Three look
This "seeing" is divided into four steps: packaging, parameters, appearance, lighting.
1 Look at the packaging, there is no strong choice of energy grade label on the box. Don't know how to call the energy rating? It doesn't matter, Duang looks at the picture:
Figure: This is the energy rating. This figure shows that the bulb has an energy rating of Class A. Such a bulb can be bought. A is the most energy efficient, and G is the least energy efficient.
Figure: This package does not see the energy rating, so the product is determined not to buy.
2 look at the parameters, there are many parameters is not it? I don't know who is who, right? In fact, we don't need to look at that much, just look at the luminous flux one. In the case of the same power, choose the LED bulb with a higher value. BiÄng, biÄmg, biÄng, biÇŽng~
Figure: The same 4W LED bulb, of course, choose the one of 300 lm.
Inserting public service advertisements: If you see that there is no energy grade label on the box and you have printed “90% power savingâ€, you can report it. The Quality Supervision Bureau will punish him 50,000! Those bad manufacturers, careful liver began to tremble, there are wood?
3 look at the appearance, the lamp head is loose, the interface is loose, the interface is not selected, and the appearance is rough.
Picture: If you do such a rough work, don't show it out, and advise Jun to choose it.
4 look at the lights, after lighting, there are such points to watch, stroboscopic, uniform, light color, color.
How do you see strobe? The phone can be tested, the lens is facing the LED bulb, if the screen flashes that the bulb has a strobe, these products are definitely not selected!
How to look evenly? In fact, look at the bubble just fine, not much to say, duang duang, look at the picture!
Figure: The uniformity of this light source is still good, consistently up and down, no obvious difference between light and dark.
Figure: Look at the "bubble" of this bulb, the change from top to bottom is too big, the light guide material is too bad
What do you think of light color? It is the white light, warm light, and yellow light that we often recite. Here mainly talk about white LED bulbs. If you see the faint blue and green after lighting, you will definitely not choose. Although it is not necessary to talk about blue changes, but this faint blue light has some impact on your eye fatigue, children's vision...
Figure: The nominal 5700K bulb is already blue. In addition, the stroboscopic and uniformity mentioned in the above two points, it is all occupied, waterfall sweat ... This product should not be chosen.
How to look at color development? Please extend your palm and look at your palm under this light~ The normal ruddy complexion is a good light bulb, and it looks like a blue-green "sickness".
Looking at this picture, you should be very clear which light bulb to choose?
Finally, the products of the LED era are basically on the same starting line. Don't be superstitious about the so-called "big brands."