收到客户询盘，我只用一封邮件客户就下单了

我喜欢做外贸的原因是，它是一份很有意思的工作。或许，有人会说：" 无非就是每天开发客户，跟进客户，日日如此，有什么意思？"

其实，它的有意思就在于它的"不确实性"。看起来日复一日重复的工作，实则每天都会不一样。跟的客户不一样，遇到的问题也会不一样。当你早上坐在电脑前的时候，你不会知道接下来的这一天等待你的将会是惊喜还是惊吓。

有一天，我收到了一个询盘

Hello,

we are interested in ordering 4 reels of SK6812 5050 RGBLEDS. We have had some problemswith WS2812B reliability. But also recent batches of SK6812 have shown some problems.

Note:

We know this type of LED is very sensitive to any type of physical

stress and so are extremely carefully when de-panelising our PCBs. We use low temperature vapour phase ovens. We have found that the latest WS2812B power on reset does not work if the voltage rail is around 100-200mV before power up. Hence we believe SK6812 LEDs would be a better choice but we need to find a reliable source for these components.

Can you help?

1. Can you supply reliable SK6812 5050 RGB LEDs?

2. Please can you give me a price for these parts?

3. What guarantees can you give me should we encounter problems with LEDs that you supply?

Kind regards,

Phil

内容很长，而且客户之前的产品还出了点问题，现在对要采购的新产品有点担忧。

这里科普一下：

WS2812B和SK6812都是全彩的LED灯珠，产品性能都一样，只不过是不同的封装公司，SK6812是在WS2812B的基础上生产出来的，也是它的升级版。

应该很多人都会拿出很多证据来力证公司产品多好多好，不会再出现客户担心的问题吧？

而我，属于简单粗暴型，第一封邮件直接附了说明书和PI，回复邮件如下：

Hello Phil,

This is Elisa, so glad to get your professional inquiry on LEDs.

Concerning your questions:
1. Can you supply reliable SK6812 5050 RGB LEDs?
Yes, all the LEDs we have are reliable, specification as attached for your reference.
P.S: sk6812 is one update version depends on ws2812b, it's more reliable and function i.............

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