1、芯片辐射功率等级的差异：
1, chip radiation power level difference:
以厦门三安的芯片为例，S-23BBMUP-C*******，芯片尺度为23X10mil，这个芯有4个辐射功率等级(@20mA)，辐射功率越高，做出的灯珠越亮。
In the case of Xiamen Sanan chip, S-23BBMUP-C*******, chip scale 23X10mil, the core 4 radiation power level (@20mA), the radiation power is high, make the lamp more bright.
D24 辐射功率 26-28mW
D24 radiation power 26-28mW
D25 辐射功率 28-30mW
D25 radiation power 28-30mW
D26 辐射功率 30-33mW
D26 radiation power 30-33mW
D27 辐射功率 33-36mW
D27 radiation power 33-36mW
D24与D27的辐射功率相差8mW，也即是说，一样尺度的芯片，做出的灯珠亮度不一样，相差许多，需求了解芯片的辐射功率等级。
The microwave power is D24 and D27 is 8mW, that is to say, the same scale of the chip, make the lamp brightness is not the same, are many, needs to understand the radiation power level chip.
2、灯珠支架资料的差异：
The difference between the 2, the lamp bracket materials:
目前商场上有铝支架、黄铜支架、紫铜支架等，铝支架最廉价，紫铜支架最贵，报价相差十几倍。即便是紫铜支架，镀银的报价也有凹凸之分，商场通常称为好支架的，大部分是黄铜镀银做的。
At present, there are aluminum bracket, brass bracket, copper bracket, etc. the aluminum bracket is the cheapest and the copper bracket is the most expensive. The quotation is ten times more than the difference. Even if the copper stent, silver plated quote also has a concave and convex points, shopping malls are usually called good stent, most of the brass silver plating.
3、芯片尺度的差异：
3 chip scale differences:
通常所报的芯片尺度是以mil，如果没有高倍丈量显微镜，通常是很难差异的，芯片越大越亮，咱们能够经过核算芯片面积来对比芯片巨细，如23X10，芯片的面积是230平方mil，用芯片面积差异芯片巨细才是个好办法。
Usually reported by the chip scale is mil, if there is no high power microscope measurement, it is usually difficult difference, the bigger the chip light, we can through the accounting chip area compared to chip size, such as 23X10, the chip area is 230 square mil, with the area of the chip chip size difference is a good way to.
4、焊线资料的差异：
4 、 difference of welding line data:
芯片与支架是用金线焊接办法完结电极连通，目前商场上有合金线、纯金线两种，纯金线最佳，金线依照粗细又分0.7、0.9、1.0、1.2等，金线越粗，热组越低，寿数越长，所有要问清金线的原料和直径。
The chip and the bracket is connected to the end of the electrode with gold alloy wire, welding, there are currently two kinds of pure gold market, pure gold, gold in thickness is divided into 0.7, 0.9, 1, 1.2, gold is thicker, the heat group is low, life is long, all to ask the raw materials and the diameter of gold.
5、荧光粉的差异：
5. Difference of phosphor:
白光灯珠是用蓝光芯片加**荧光粉做成的，荧光粉主要分铝酸盐和硅酸盐，铝酸盐功能优于硅酸盐，铝酸盐最为代表的是YAG，YAG功能安稳，光衰低，硅酸盐本身的化学安稳性较差，但亮度比YAG高，想做功能安稳的产品，可不要被所谓的高亮度忽悠了，这但是个大问题。
The white light lamp is made of blue chip with * * fluorescent powder, fluorescent powder consists of aluminate and silicate, aluminate silicate aluminate is better than, the most representative is YAG, YAG function stable, low light decay, Portland itself chemical stability is poor, but the brightness is higher than YAG, want to do function stable products, can not is the so-called high brightness flicker, but this is a big problem.
6、胶水的差异：
6, glue difference:
荧光粉是要和胶水拌和后在点在芯片上的，胶水的好坏影响到光衰和色漂移，差的胶水时间长会黄化，光衰加大，好的胶水是果冻胶。
The fluorescent powder and glue to mixing at the point on the chip, affect the glue to decay and color drift, poor glue long time will increase the light yellow, jelly glue is good.
7、分色、分压与分光的标准：
7 、 standards of color separation, pressure distribution and separation:
分色：即是色温分档，如3200K-3350K为一档，规范的封装厂会提供色温的BIN码，色温分档越小越好，色温分档小，做出的光源光的色彩一致性好。
Color separation: that is the color temperature of the file, such as 3200K-3350K for a file, the standard packaging factory will provide color temperature BIN code, color temperature, the smaller the better file, color temperature, small files, make the light source of light color consistency is good.
分压：即是芯片的电压分档，如3.0V-3.15V，关于光源是串并联的衔接方法，电压分档控制在0.15V以内，这么光源的电流分布均匀，有利于进步光源的寿数。
Pressure: is the chip voltage range, such as 3.0V-3.15V, a light source is the method of series parallel connection, the voltage grading control within 0.15V, so the uniform current distribution of light source, light source is conducive to the progress of life.
分光：即是灯珠亮度分档，有流明分档或许光强度分档，关于用于照明光源，最佳选用流明分档。建议收购LED，还是以光效为根据，高光效的产品，才会节能，寿数长。
Light: is the lamp brightness range, a lumen tranche or tranches of a light intensity, for lighting, the best selection of lumen tranches. The proposed acquisition of LED, or in the light effect on high efficiency products, will be energy saving, long life.
以上是收购LED灯珠的几条准则，只要了解这些内容，并把这些条款做在你的定货合同里，你才会有时机维护自个的权益，否则，吃亏的一定是你，灯珠的报价是最诱人的陷阱，一旦陷下去，公司只要关门走人了。
These are a few guidelines to buy LED beads, as long as the understanding of the content, and these terms in your orders, you will have the opportunity to maintain self interests, otherwise, you must suffer, beads offer is the most attractive trap, once the sink, as long as the company closed.
 

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