got it~ thanks

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- ♂ (183 bytes) () 05/17/2019 postreply 04:01:49

• from ebay -別在窗前等我- ♂ (1922 bytes) () 05/17/2019 postreply 08:23:43

• kind of datasheets of 1W-100W High Power LED Chip COB Lights -xia23- ♂ (1433 bytes) () 05/17/2019 postreply 16:01:08

• Read my 悄悄話 please, use a 7812 voltage regulator on your LEDs. -xia23- ♂ (942 bytes) () 05/20/2019 postreply 04:19:10