diff --git a/upk2esphome/parts/bulb.py b/upk2esphome/parts/bulb.py
index 5a801d7..433db27 100644
--- a/upk2esphome/parts/bulb.py
+++ b/upk2esphome/parts/bulb.py
@@ -90,7 +90,7 @@ def gen_pwm(yr: YamlResult, config: dict) -> set[str]:
 
         yr.log(f" - color {color}: pin P{pin}, inverted {inv}")
         output = {
-            "platform": "ledc",
+            "platform": "libretiny_pwm",
             "id": f"output_{color}",
             "pin": f"P{pin}",
         }
diff --git a/upk2esphome/parts/switch.py b/upk2esphome/parts/switch.py
index 441cd96..ab3667e 100644
--- a/upk2esphome/parts/switch.py
+++ b/upk2esphome/parts/switch.py
@@ -58,7 +58,7 @@ def generate(yr: YamlResult, config: ConfigData, opts: Opts):
         if led_pin is not None:
             yr.log(f" - LED {i}: pin P{led_pin}")
             output = {
-                "platform": "ledc",
+                "platform": "libretiny_pwm",
                 "id": f"output_led_{i}",
                 "pin": f"P{led_pin}",
             }