The ARLEC UH551HA Linkable bar light is a mains powered cool/warm LED bar light. It is also available in different lengths (UH552HA 87cm) and RGB (UC566HA)
Link
Sorry no pictures of the disassembly. It is challenging to open - the mains plug end is where to start. This is bonded in with silicone adhesive so poking a small screwdriver around the walls to release the bond. The end plug can be pulled out with a bit of effort. I found it was necessary to desolder the power switch in order to remove the electronics.
The module used is a Tuya CBLC9. It is not necessary to remove the module from the PCB in order to reflash it. I soldered wire-wrap wire to the pads - thin wire is needed so that you don't accidentally rip off the pads as they are small.
I loaded OpenBK V1.18.24.
The configuration is:
P7(PWM1) PWM chan 1
P8(PWM2) PWM_n chan 0 (PWM_n so cold/warm works the right way)
Flag 8 should be enabled. This makes the web page brightness and color temp sliders work properly
That's it - not much to it



Link
Sorry no pictures of the disassembly. It is challenging to open - the mains plug end is where to start. This is bonded in with silicone adhesive so poking a small screwdriver around the walls to release the bond. The end plug can be pulled out with a bit of effort. I found it was necessary to desolder the power switch in order to remove the electronics.
The module used is a Tuya CBLC9. It is not necessary to remove the module from the PCB in order to reflash it. I soldered wire-wrap wire to the pads - thin wire is needed so that you don't accidentally rip off the pads as they are small.
I loaded OpenBK V1.18.24.
The configuration is:
P7(PWM1) PWM chan 1
P8(PWM2) PWM_n chan 0 (PWM_n so cold/warm works the right way)
{
"vendor": "Tuya",
"bDetailed": "0",
"name": "ARLEC UH551HA Bar light",
"model": "UH551HA Light",
"chip": "BK7231N",
"board": "TODO",
"flags": "5376",
"keywords": [
"TODO",
"TODO",
"TODO"
],
"pins": {
"7": "PWM;1",
"8": "PWM_n;0"
},
"command": ""
}
Flag 8 should be enabled. This makes the web page brightness and color temp sliders work properly
That's it - not much to it