Tips that need to note when purchasing LED strip light

LED strip lights now can be regarded as one of the indispensable decoration lighting products; you need to pay attention to 6 elements when buying. Because the production of LED strip lights with low threshold, there are a lot of factories and workshops of this project which has led to LED lights market was mixed, the products quality is uneven. Person who does not have relevant knowledge and experience is easily deceived by inferior lights. But experienced people still have a way to identify, formal manufacturers LED strip lights and cottage version LED strip lights (meaning manual work products produced in the rental) can be identified from the appearance. Here we talk about how recognize good or bad quality LED strip lights:

1, solder joint. The regular production LED lights is manufactured which use SMT chip technology with solder paste and reflow processes of production. Thus, LED strip lights are relatively smooth and not many amount solder. Solder joints are a circular arc extending from the FPC LED electrode pads place. The amount of solder joints cottage version LED strip lights is uneven, mostly is a dot wrap welding foot, while there will be varying degrees of tin tip appears, which is a typical phenomenon of manual welding.

2. FPC quality. FPC has copper and rolled copper two types. Copper clad copper foil is protruding, and then looks at the FPC connector from the pad and look out. The FPC rolled copper is close and even as one can be bent and will not appear pad off phenomenon. Bonded Copper pad will appear if bent too much off, when the temperature is too high will result in the maintenance pad off.

3, tab. regular LED lights bags and roll tray above will have a printed label, instead of printing labels. The cottage version of the label is printed, and specifications and parameters are not unified.

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How to select LED bulb

First, consider the overall “power factor”: a low power factor indicates that power supply, circuit design is not proper which will greatly reduce the lamp life! Low power factor, no matter how good the light bead is, the lamp life is not president. Use the “power factor table”, you can detect the quality of the power factor. Generally, export LED bulb is required to achieve power factor above 0.85. When power factor is less than 0.5, it should be said it is substandard products or refuse products, not only lifespan is short, and the actual consumption of electricity is about twice higher than the nominal, compare with the ordinary energy-saving lamps, it is simply not saving! So, that is the reason why the LED bulb needs to be equipped with high quality, high efficiency drive power! For the customers who have no “power factor table” to detect power factor, there is a way to use “ampere meter” to detect a similar product with nominally identical power, the greater current and current harmonics indicate that the actual power consumption is large, is less saving! Meanwhile, the instability current also has bad effect on the beads lamp and whole lamp life!

Second, consider “heat lamps conditions – materials, structures”: LED lighting heat dissipation is also very important, lamps and lamp beads with the same quality and power factor, if the heat dissipation is not good, lamp beads work at high temperatures, the light fades will great, lamp life will be reduced.
Currently, the main heat sink material is copper, aluminum, PC. The heat dissipation property is respectively aluminum, copper, PC. Now the best heat sink material is typically aluminum, preferably is inserted aluminum sheet, followed by Aluminium (Al profiles, extruded aluminum), the worst is cast aluminum, aluminum inserts cooling effect is best! If use air convection method to dissipate heat, then the circuit and power supply insulation problem must be handled. Otherwise, the lamps work in humid environments prone to short circuit, causing accidents!

Third, consider the drive power: compare to the rest part of the lamp, the life expectancy is much shorter; the power life affects the overall life of the lamp. Lamp beads theoretical life is 5-10 million hours, and the power supply life is 0.2 -3 million hours, power supply design and material selection will determine the life of the power supply.

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