How To Identify The Material Difference Between The Bi-color LED Flexible Strip

How to identify the material difference between the Bi-color LED Flexible Strip
In the industry where the fish is mixed with the fish, how to identify the two-color LED flexible with the quality of the problem is the most concerned about the needs of users, light Puda as a two-color LED flexible industry "leader" with professional knowledge to teach them how Fast and accurate, fast identification of two-color LED flexible with quality problems.
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Two-color LED flexible belt is the LED lights assembled in the ribbon of the FPC or PCB hard board, all over the use of all walks of life.Therefore, in the purchase of two-color LED flexible belt when you can choose to the quality of the Bi-color LED Flexible Strip is very tense Two - color LED flexible with two, one is flexible LED, the other is the LED light bar.
First, the flexible two-color LED flexible belt is to adopt FPC to do assembly circuit board, with SMD LED assembly, so that the thickness of the product is only a coin thickness, no space; wide specifications are 30cm long 18 LED, 24 LED And 50cm long 15 LED, 24 LED, 30 LED and so on. There are 60cm, 80cm, etc., different users have different specifications. And can be arbitrarily cut, can also be arbitrarily extended and light is not affected. The FPC material is soft, can be bent, folded, winding, can be moved in three-dimensional space and telescopic and not broken. Appropriate in the irregular place and space for the use of small places, but also because of its arbitrary bending and winding, properly in the confession of any combination of various patterns.
Second, the LED light bar is made of PCB hard board assembly circuit board, LED useful patch LED assembly, but also useful in-line LED assembly, depending on the necessary differences and the use of different components. The light is easy to solid, processing and placement are more convenient; the disadvantage is not free to bend, not when the rules of the premises. Hard light with patch LED has 18 LED, 24 LED, 30 LED, 36 LED, 40 LED, etc., how many kinds of specifications; with straight-through LED has 18, 24, 36, 48 and other different specifications, there are positive side, side light, also known as the Great Wall light bar.
How to identify the difference in the quality of the two-color LED flexors for these two differences
Identification of a: see the spot. Formal two-color LED flexible with a manufacturer of two-color LED flexible belt is adopted SMT chip technology, with solder paste and reflow process produced. Therefore, the Bi-color LED Flexible Strip on the solder joints than the creamy and the amount of solder will not be more, the solder joint was arc-like from the FPC pad to the LED electrode extension. 【Pirates of the cave version of the two-color LED flexible solder joint with the amount of solder is not uniform, mostly a dot wrapped around the foot, while there will be differences between the level of tin tip, which is a typical example of manual welding.
Identification of two: see FPC quality. FPC divided into copper and rolling copper two, copper clad copper foil is protruding, look at the point of view from the connection with the FPC to see. The rolling copper is close and FPC even As a whole, you can bend any bend and will not show the phenomenon of falling off the tape.Pressing copper plate if the overdose will appear to fall off the pad, the maintenance of high temperature will cause the pad off.
Identification of three: look at the color of the two-color LED flexible belt with the degree of clarity.If the adoption of SMT technology produced by the two-color LED flexible belt, the profile of the cleanliness is very good, do not see any impurities and stains, but if the use of hand- Cave version of the two-color LED flexible belt, its profile no matter how cleaning, the city residual stains and cleaning of the traces, while the FPC profile will have flux and tin residue residue.
Regular two-color LED flexible belt will adopt anti-static coil tray packaging, usually 5 meters a volume is about 10 meters a volume, and then the surface and then adopt the anti-static moisture-proof packaging bag sealed. And the cave version of the two-color LED flexible belt because of the cost savings, and adopted to accept the takeover coil tray, and then there is no anti-static moisture-proof packaging bags, carefully look at the coil tray to see the appearance of the label to leave the mark and scratches The
Identify five: look at the label. Formal two-color LED flexible with a bag and roll tray above the city has a printed label instead of a printed label. And the cave version of the label is printed, while the specifications and parameters are not uniform.
Identification of six: see the annex. Normal two-color LED flexible belt will be attached to the inside of the box with the use of clarity and lamp specifications, but also equipped with two-color LED flexible connector is probably a deck; and the cave version of the two-color LED flexible With the box is not the annex, because some manufacturers are still able to save the province.