Led Tube With Purchasing Tips
Whether foreign companies or engineering companies in the procurement of Led Tube with
, do not just focus on price, from the following aspects to the comprehensive examination in order to get a good price band Led Tube.
1,
Led Tube with the use of the chip: the chip has made, and the Taiwan chip, as well as imports of chips (including the U.S. chip, chip, Japan, Germany, chips, etc.). Different chips, prices vary widely. Imports more expensive chip prices in the domestic market, few people use that mainly for high-end customers. The current high-end customers is generally used in Taiwan's chip, cost is the best.
2, LED packages: sub-package and silicone resin package. Resin package prices cheaper, because the thermal performance a bit weak, others are the same. Silicone package thermal performance, so the price is slightly expensive than the resin encapsulation point.
3, the color consistency: At present, there are many packaging factory, also add up to thousands of large and small, of course, also the strength of the strong and weak points. There are many small packaging plant the absence of color separation machine, so regardless of light or color, or is contracted out. This is difficult to guarantee the quality
4, the welding effect: Led Tube assembly points with manual welding and machine welding of two, is to use hand soldering iron, using the most primitive way to carry out welding. Such practices out of the product first appearance of the ugly (solder joint size is inconsistent, and more flux residue, solder joint is not smooth, LED packaging is ruined, etc.), and second, static protection is not good, a lot of LED chip is breakdown, lead to micro-light or when power is off phenomenon.
Not the same welding machine, welding machine is used for reflow soldering, not only beautiful appearance of the product after soldering (solder joints the same size, smooth solder joints, solder volume of the rules of the arc was like, no flux residue, LED packaging intact), And the chip does not appear to be the phenomenon of static electricity burned. Meanwhile, LED position and orientation are more beautiful. This can be seen directly from the appearance.
5, FPC Material: FPC sub-rolled copper and copper clad two, Bonded Copper cheaper, rolled copper is more expensive. Electrolytic copper by electrolysis the name suggests is that copper ions to form copper foil to the substrate, so its features are: high electrical conductivity, but is relatively weak resistance to bending; rolled copper is high purity (> 99.98% ) with Rolling Method of copper attached to the FPC on - because FPC with copper foil has excellent adhesion, copper foil adhesion strength and high temperature, 260 can be immersed in the molten solder from the solder without bubble. This process looks somewhat like rolling dumpling skin, the thinnest can be less than 1mil (Industrial unit: mil, that is, thousandths of an inch, the equivalent of 0.0254mm). Rolled copper is obtained by squeezing the copper foil, which is characterized by: a good degree of resistance to bending, but weaker than the electrical conductivity of copper is mainly used for clamshell camera phone and the like. From the exterior view, copper red, yellow copper rolling6, FPC whether through environmental certification, UL certification? LED without patents. Have been certified and patented, more expensive, not cheap.7, LED brightness: the brightness of LED with different different prices, the general highlighted the LED brightness and compare the price difference between the poor. Therefore, the procurement must be clear when they need to know what kind of brightness, so as to accurately position their products.If you understand that a number of general procurement, then the price would be more accurate grasp. Bu Zhiyu just to bargain and bargain, can be targeted.Whether foreign companies or engineering companies in the procurement of Led Tube with, do not just focus on price, from the following aspects to the comprehensive examination in order to get a good price band Led Tube.1, Led Tube with the use of the chip: the chip has made, and the Taiwan chip, as well as imports of chips (including the U.S. chip, chip, Japan, Germany, chips, etc.). Different chips, prices vary widely. Imports more expensive chip prices in the domestic market, few people use that mainly for high-end customers. The current high-end customers is generally used in Taiwan's chip, cost is the best.2, LED packages: sub-package and silicone resin package. Resin package prices cheaper, because the thermal performance a bit weak, others are the same. Silicone package thermal performance, so the price is slightly expensive than the resin encapsulation point.3, the color consistency: At present, there are many packaging factory, also add up to thousands of large and small, of course, also the strength of the strong and weak points. There are many small packaging plant the absence of color separation machine, so regardless of light or color, or is contracted out. This is difficult to guarantee the quality4, the welding effect: Led Tube assembly points with manual welding and machine welding of two, is to use hand soldering iron, using the most primitive way to carry out welding. Such practices out of the product first appearance of the ugly (solder joint size is inconsistent, and more flux residue, solder joint is not smooth, LED packaging is ruined, etc.), and second, static protection is not good, a lot of LED chip is breakdown, lead to micro-light or when power is off phenomenon.Not the same welding machine, welding machine is used for reflow soldering, not only beautiful appearance of the product after soldering (solder joints the same size, smooth solder joints, solder volume of the rules of the arc was like, no flux residue, LED packaging intact), And the chip does not appear to be the phenomenon of static electricity burned. Meanwhile, LED position and orientation are more beautiful. This can be seen directly from the appearance.5, FPC Material: FPC sub-rolled copper and copper clad two, Bonded Copper cheaper, rolled copper is more expensive. Electrolytic copper by electrolysis the name suggests is that copper ions to form copper foil to the substrate, so its features are: high electrical conductivity, but is relatively weak resistance to bending; rolled copper is high purity (> 99.98% ) with Rolling Method of copper attached to the FPC on - because FPC with copper foil has excellent adhesion, copper foil adhesion strength and high temperature, 260 can be immersed in the molten solder from the solder without bubble. This process looks somewhat like rolling dumpling skin, the thinnest can be less than 1mil (Industrial unit: mil, that is, thousandths of an inch, the equivalent of 0.0254mm). Rolled copper is obtained by squeezing the copper foil, which is characterized by: a good degree of resistance to bending, but weaker than the electrical conductivity of copper is mainly used for clamshell camera phone and the like. From the exterior view, copper red, yellow copper rolling6, FPC whether through environmental certification, UL certification? LED without patents. Have been certified and patented, more expensive, not cheap.7, LED brightness: the brightness of LED with different different prices, the general highlighted the LED brightness and compare the price difference between the poor. Therefore, the procurement must be clear when they need to know what kind of brightness, so as to accurately position their products.If you understand that a number of general procurement, then the price would be more accurate grasp. Bu Zhiyu just to bargain and bargain, can be targeted.Compression Tube Fittingsby: hookah
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