What should be paid attention to when selecting LED bead specifications and models?
Either value quality or value brand.
The quality is relatively good, but there is relatively little follow-up maintenance.
This sentence has been said many times, and I am still saying it now.
I want to say that before selecting lamp beads, it is necessary to pay more attention to testing the electrical parameters of the lamp beads and pay attention to performance, but I can't always say.
Many customers inquire about why I always have inconsistent quality when using certain lamp beads.
Why do the lamp beads I choose always use the old dead light.
Why do the lamp beads I choose always show severe light decay.
Why did I choose a consistent color difference for the lamp beads.
I have been engaged in LED bead consulting since the end of November, urging everyone to choose a reputable brand for bead selection.
Now I have changed persuasion into suggestion, which is more pleasing to everyone's eyes.
Of course, this quality selection is also recommended for everyone to try.
Choosing to value quality or price is up to everyone.
Don't people like to choose their own lamp bead specifications and lamp bead suppliers?
If my kid wants good quality and low price, I will tell him that fish and bear paws cannot be both.
Whatever my little boy eats, whether he is picky or not, he always tells him to avoid going to roadside stalls.
When growing up, one should not only have balanced nutrition, but also be clean and hygienic.
Because roadside stalls don't use gutter oil, I don't know.
What is one cent price, one cent goods
There are many welding methods for LED lamp beads on the chip, and the following is one of the commonly used methods for reference. First, use an electric soldering iron to heat some soldering tin on the positive and negative electrode pads of the lamp bead (the soldering tin must not be too much, otherwise, the positive and negative electrode pads will be connected once heated with a hot-air gun), then use a hot-air gun to heat the positive and negative electrode pads at the same time, after the tin melts, use tweezers to place the positive and negative electrodes of the lamp bead on the corresponding pad.
LED is the light emitting diode, which is a semiconductor solid light emitting device that converts electric energy into light energy. Its core is the PN junction. In addition to the forward conduction, reverse cut-off and breakdown characteristics of the general PN junction, it also has the light emitting characteristics under certain conditions. Its structure mainly includes the following parts: lead, bracket, encapsulation glue, bonding wire, LED chip, solid crystal glue and phosphor. The discoloration failure of LED lamp bead is closely related to its material, structure, packaging process and service conditions. The following will analyze the causes of its discoloration through specific cases.
LED lamp beads are also called light emitting diodes. It has a wide range of applications. Its luminous colors include red light, emerald green light, yellow green light, yellow light, purple light, blue light, white light and orange light. The above is monochromatic light. It can also be made into two or three colors.
The gold wire used to package LED lamp beads contains more than 99.99% gold. It is produced by drawing gold from this material. In addition to 99.99% gold, this gold also contains less than 1% other trace elements. One of the core components of LED lamp bead packaging is gold wire, which is the bridge connecting the luminous chip and the welding point, and plays a decisive role in the service life of LED lamp bead. So how to identify the purity of gold thread?