diff --git a/esphome/components/light/base_light_effects.h b/esphome/components/light/base_light_effects.h
index 9211bba7c9..d126e4960c 100644
--- a/esphome/components/light/base_light_effects.h
+++ b/esphome/components/light/base_light_effects.h
@@ -3,8 +3,8 @@
 #include <utility>
 #include <vector>
 
-#include "light_effect.h"
 #include "esphome/core/automation.h"
+#include "light_effect.h"
 
 namespace esphome {
 namespace light {
@@ -27,8 +27,8 @@ class PulseLightEffect : public LightEffect {
     auto call = this->state_->turn_on();
     float out = this->on_ ? this->max_brightness : this->min_brightness;
     call.set_brightness_if_supported(out);
+    call.set_transition_length_if_supported(this->on_ ? this->transition_on_length_ : this->transition_off_length_);
     this->on_ = !this->on_;
-    call.set_transition_length_if_supported(this->transition_length_);
     // don't tell HA every change
     call.set_publish(false);
     call.set_save(false);
@@ -37,7 +37,8 @@ class PulseLightEffect : public LightEffect {
     this->last_color_change_ = now;
   }
 
-  void set_transition_length(uint32_t transition_length) { this->transition_length_ = transition_length; }
+  void set_transition_on_length(uint32_t transition_length) { this->transition_on_length_ = transition_length; }
+  void set_transition_off_length(uint32_t transition_length) { this->transition_off_length_ = transition_length; }
 
   void set_update_interval(uint32_t update_interval) { this->update_interval_ = update_interval; }
 
@@ -49,7 +50,8 @@ class PulseLightEffect : public LightEffect {
  protected:
   bool on_ = false;
   uint32_t last_color_change_{0};
-  uint32_t transition_length_{};
+  uint32_t transition_on_length_{};
+  uint32_t transition_off_length_{};
   uint32_t update_interval_{};
   float min_brightness{0.0};
   float max_brightness{1.0};
diff --git a/esphome/components/light/effects.py b/esphome/components/light/effects.py
index c694d6f50c..5212e90938 100644
--- a/esphome/components/light/effects.py
+++ b/esphome/components/light/effects.py
@@ -76,6 +76,8 @@ CONF_ADDRESSABLE_RANDOM_TWINKLE = "addressable_random_twinkle"
 CONF_ADDRESSABLE_FIREWORKS = "addressable_fireworks"
 CONF_ADDRESSABLE_FLICKER = "addressable_flicker"
 CONF_AUTOMATION = "automation"
+CONF_ON_LENGTH = "on_length"
+CONF_OFF_LENGTH = "off_length"
 
 BINARY_EFFECTS = []
 MONOCHROMATIC_EFFECTS = []
@@ -170,9 +172,15 @@ async def automation_effect_to_code(config, effect_id):
     PulseLightEffect,
     "Pulse",
     {
-        cv.Optional(
-            CONF_TRANSITION_LENGTH, default="1s"
-        ): cv.positive_time_period_milliseconds,
+        cv.Optional(CONF_TRANSITION_LENGTH, default="1s"): cv.Any(
+            cv.positive_time_period_milliseconds,
+            cv.Schema(
+                {
+                    cv.Required(CONF_ON_LENGTH): cv.positive_time_period_milliseconds,
+                    cv.Required(CONF_OFF_LENGTH): cv.positive_time_period_milliseconds,
+                }
+            ),
+        ),
         cv.Optional(
             CONF_UPDATE_INTERVAL, default="1s"
         ): cv.positive_time_period_milliseconds,
@@ -182,7 +190,21 @@ async def automation_effect_to_code(config, effect_id):
 )
 async def pulse_effect_to_code(config, effect_id):
     effect = cg.new_Pvariable(effect_id, config[CONF_NAME])
-    cg.add(effect.set_transition_length(config[CONF_TRANSITION_LENGTH]))
+    if isinstance(config[CONF_TRANSITION_LENGTH], dict):
+        cg.add(
+            effect.set_transition_on_length(
+                config[CONF_TRANSITION_LENGTH][CONF_ON_LENGTH]
+            )
+        )
+        cg.add(
+            effect.set_transition_off_length(
+                config[CONF_TRANSITION_LENGTH][CONF_OFF_LENGTH]
+            )
+        )
+    else:
+        transition_length = config[CONF_TRANSITION_LENGTH]
+        cg.add(effect.set_transition_on_length(transition_length))
+        cg.add(effect.set_transition_off_length(transition_length))
     cg.add(effect.set_update_interval(config[CONF_UPDATE_INTERVAL]))
     cg.add(
         effect.set_min_max_brightness(
diff --git a/tests/test1.yaml b/tests/test1.yaml
index 7bd6dcb41d..64d1d36f52 100644
--- a/tests/test1.yaml
+++ b/tests/test1.yaml
@@ -2179,6 +2179,20 @@ light:
             state += 1;
             if (state == 4)
               state = 0;
+      - pulse:
+          transition_length: 10s
+          update_interval: 20s
+          min_brightness: 10%
+          max_brightness: 90%
+      - pulse:
+          name: pulse2
+          transition_length:
+            on_length: 10s
+            off_length: 5s
+          update_interval: 15s
+          min_brightness: 10%
+          max_brightness: 90%
+
   - platform: rgb
     name: Living Room Lights
     id: ${roomname}_lights