AI: Have you tested this pinout on the SH-LE27RGB, or is this still unverified? Tested OK
AI: Can you share a photo of the WB2L board and say which PWM pins control R, G, B, CW/WW (or brightness)? No
Nice, a simple PWM-based lamp. I haven't seen old WB2L in some time. How's the heating? We recently had an interesting PR with dynamic overheating protection working by reducing LED brightness when WiFi module temperature grows too high.