got it~ thanks

来源: 别在窗前等我 于 2019-05-16 14:53:36 [] [旧帖] [给我悄悄话] 本文已被阅读： 次 (997 bytes)
本文内容已被 [ 别在窗前等我 ] 在 2019-05-16 15:21:43 编辑过。如有问题，请报告版主或论坛管理删除.
回答: 1k 1/4w resistor is ok as coolwin suggested. 由 xia23 于 2019-05-16 09:59:36

the 1 , 2 and 3 led come with resistor, i need  resistor for 4 and 5 led (yellow and white color) seller call them COB. i do some test before, i change 1 2 3 led resistor into 4 and 5 and work but not enough bright。

the first led is T4.2 Neo Wedge 3528 1210-SMD Light Bulb.

yes first color  is orange and i using  meter test 351 ohm. (orange blue brown and gold)

 

所有跟帖： 

• where did you buy the yellow and white translucent LEDs? -xia23- ♂ 给 xia23 发送悄悄话 xia23 的博客首页 (183 bytes) () 05/17/2019 postreply 04:01:49

• from ebay -别在窗前等我- ♂ 给 别在窗前等我 发送悄悄话 (1922 bytes) () 05/17/2019 postreply 08:23:43

• kind of datasheets of 1W-100W High Power LED Chip COB Lights -xia23- ♂ 给 xia23 发送悄悄话 xia23 的博客首页 (1433 bytes) () 05/17/2019 postreply 16:01:08

• Read my 悄悄话 please, use a 7812 voltage regulator on your LEDs. -xia23- ♂ 给 xia23 发送悄悄话 xia23 的博客首页 (942 bytes) () 05/20/2019 postreply 04:19:10

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