subject: Eight Main Points To Identify The Quality Of Led Lamps And Lanterns [print this page] Lighting production because of the low threshold, therefore a lot of people launched this project. At present, LED lamps are the most fiery. Some people say that their quality is difficult to discern, but the experienced people still have a way to identify the regular manufacturers to produce LED lamps and lanterns and cottage version of the LED lamps and lanterns (namely refers to meaning depends on artificial work produced products at the rental house.) is can a glance out from the appearance. The following talk about how you by eyes to identify the quality of LED lamps and lanterns are good or bad.
1. The LED lamps and lanterns chip: the chip made in domestic and Taiwan chip, as well as imports of chips (including U.S. chip, Japanese chip, and German chip). Chip is different, price difference is very big. Import chip are expensive, and very few people use in the domestic market, that kind of is mainly aimed at high-end customers. At present in the high-end customers generally choose is Taiwan chip, cost is the best.
2. The LED packaging: resin package and silicone encapsulation. The resin package price is cheaper, because thermal performance somewhat less and the other is the same. The silicone package thermal performance is good, so its price is slightly more expensive than the resin package.
3. Color consistency: at present, there are a lot of packaging plants in domestic, large and small add up to a thousands of home, of course, there is also the strength divided into the strong and weak. There are many small packaging factories with no spectral color separation machine, so either not spectral color separation, or is outgoing, so that it is difficult to guarantee the quality.
4. Look at the solder joints: Regular LED lamp belt with manufacturers to produce LED lights belt is used SMT chip technology, production with solder paste and reflow process. Therefore, the LED lamp belt with the solder joints is smooth and the amount of solder will not much. Solder joints are in arc shape from FPC pad turn LED electrode place extensions. While fortress version and LED lamp belt spot soldering quantity with uneven , mostly tends to be a dot welding foot, and at the same time will have different degrees of solder icicles appear, this is hand welding of typical phenomenon.
5. Look at the FPC Quality: FPC divided into bonded copper and rolled copper two kinds. Copper clad plate of copper foil is bulge, if you look carefully, you can from welding plate and the joint of FPC see out. While rolled copper is close and FPC is an organic whole repeatedly, it can any bending and won't appear pad falls off phenomenon. Bonded Copper if bent too much will appear welding plate fall off; maintenance when the temperature is too high can also cause the pad off.
6. LED brightness: different brightness LED lamps and lanterns have different prices, ordinary brightness and highlighting the LED price difference disparity. Therefore, the procurement must know their need is what kind of brightness, such ability accurate positioning their products.
7. Look at the label: Regular LED lamps and lanterns bags and coil plate above will have printing label, rather than the printed label. While Cottage version of the label is printed, meanwhile, specifications and parameters are not unified.
8. Look at the Annex: Regular LED lamps and lanterns in packing contain inside will attach instructions and lamp with specifications, but also can be equipped with LED light band connector or deck; while cottage version of the LED lamps and lanterns in the packing box do not have these accessories, because they are could save the province.
Familiar with the above eight LED lamps and lanterns of choose and buy main points, when buying different brand LED lamps and lanterns will be more accurate grasp of their price, and will not just to bargain and bargain, can do have a definite object in view.
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