diff --git a/esphome/components/sm2135/__init__.py b/esphome/components/sm2135/__init__.py
index ce78d5337f..52128f1f24 100644
--- a/esphome/components/sm2135/__init__.py
+++ b/esphome/components/sm2135/__init__.py
@@ -15,6 +15,7 @@ SM2135 = sm2135_ns.class_("SM2135", cg.Component)
 
 CONF_RGB_CURRENT = "rgb_current"
 CONF_CW_CURRENT = "cw_current"
+CONF_SEPARATE_MODES = "separate_modes"
 
 SM2135Current = sm2135_ns.enum("SM2135Current")
 
@@ -51,6 +52,7 @@ CONFIG_SCHEMA = cv.Schema(
         cv.Required(CONF_CLOCK_PIN): pins.gpio_output_pin_schema,
         cv.Optional(CONF_RGB_CURRENT, "20mA"): cv.enum(DRIVE_STRENGTHS_RGB),
         cv.Optional(CONF_CW_CURRENT, "10mA"): cv.enum(DRIVE_STRENGTHS_CW),
+        cv.Optional(CONF_SEPARATE_MODES, default=True): cv.boolean,
     }
 ).extend(cv.COMPONENT_SCHEMA)
 
@@ -66,3 +68,4 @@ async def to_code(config):
 
     cg.add(var.set_rgb_current(config[CONF_RGB_CURRENT]))
     cg.add(var.set_cw_current(config[CONF_CW_CURRENT]))
+    cg.add(var.set_separate_modes(config[CONF_SEPARATE_MODES]))
diff --git a/esphome/components/sm2135/sm2135.cpp b/esphome/components/sm2135/sm2135.cpp
index f9cd4235ed..9a576859ac 100644
--- a/esphome/components/sm2135/sm2135.cpp
+++ b/esphome/components/sm2135/sm2135.cpp
@@ -97,23 +97,32 @@ void SM2135::loop() {
   this->write_byte_(SM2135_ADDR_MC);
   this->write_byte_(current_mask_);
 
-  if (this->update_channel_ == 3 || this->update_channel_ == 4) {
-    // No color so must be Cold/Warm
+  if (this->separate_modes_) {
+    if (this->update_channel_ == 3 || this->update_channel_ == 4) {
+      // No color so must be Cold/Warm
 
-    this->write_byte_(SM2135_CW);
-    this->sm2135_stop_();
-    delay(1);
-    this->sm2135_start_();
-    this->write_byte_(SM2135_ADDR_C);
-    this->write_byte_(this->pwm_amounts_[4]);  // Warm
-    this->write_byte_(this->pwm_amounts_[3]);  // Cold
+      this->write_byte_(SM2135_CW);
+      this->sm2135_stop_();
+      delay(1);
+      this->sm2135_start_();
+      this->write_byte_(SM2135_ADDR_C);
+      this->write_byte_(this->pwm_amounts_[4]);  // Warm
+      this->write_byte_(this->pwm_amounts_[3]);  // Cold
+    } else {
+      // Color
+
+      this->write_byte_(SM2135_RGB);
+      this->write_byte_(this->pwm_amounts_[1]);  // Green
+      this->write_byte_(this->pwm_amounts_[0]);  // Red
+      this->write_byte_(this->pwm_amounts_[2]);  // Blue
+    }
   } else {
-    // Color
-
     this->write_byte_(SM2135_RGB);
     this->write_byte_(this->pwm_amounts_[1]);  // Green
     this->write_byte_(this->pwm_amounts_[0]);  // Red
     this->write_byte_(this->pwm_amounts_[2]);  // Blue
+    this->write_byte_(this->pwm_amounts_[4]);  // Warm
+    this->write_byte_(this->pwm_amounts_[3]);  // Cold
   }
 
   this->sm2135_stop_();
diff --git a/esphome/components/sm2135/sm2135.h b/esphome/components/sm2135/sm2135.h
index a557fc3287..6f207d093a 100644
--- a/esphome/components/sm2135/sm2135.h
+++ b/esphome/components/sm2135/sm2135.h
@@ -39,6 +39,8 @@ class SM2135 : public Component {
     this->current_mask_ = (this->rgb_current_ << 4) | this->cw_current_;
   }
 
+  void set_separate_modes(bool separate_modes) { this->separate_modes_ = separate_modes; }
+
   void setup() override;
 
   void dump_config() override;
@@ -78,6 +80,7 @@ class SM2135 : public Component {
   uint8_t current_mask_;
   SM2135Current rgb_current_;
   SM2135Current cw_current_;
+  bool separate_modes_;
   uint8_t update_channel_;
   std::vector<uint8_t> pwm_amounts_;
   bool update_{true};