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How to Reset a Kasa Smart Bulb or Light Strip

Configuration Guide
Last updated: April 20, 2026

Kasa Smart Bulbs support two types of reset: a soft reset that preserves your current settings, and a factory reset that restores the bulb to its factory defaults. The reset method varies by model group. The steps below cover both Kasa Smart Bulbs and Kasa Smart Light Strips.

Key Takeaways

  • Kasa Smart Bulbs support two types of reset: a soft reset that keeps your current settings intact, and a factory reset that erases all custom settings and restores factory defaults.
  • For older bulb models (LB130, KL110B 1.0, KL120, KL110 1.0, and similar): flip the light switch three times for a soft reset, or five times for a factory reset.
  • For newer bulb models (KL50, KL110B 2.0, KL60, KL125, KL135 1.0, and similar): flip the light switch five times for a soft reset, or ten times for a factory reset.
  • When performing a flip-switch reset, do not switch the bulb on and off too quickly. Each interval should be approximately one second.
  • For Kasa Smart Light Strips (KL400, KL420, KL430): press and hold the controller for 5 to 10 seconds for a soft reset, or 10 or more seconds for a factory reset.

Refer to the following videos to reset your Kasa Smart Bulb:

3&5 times:

5&10 times:

Or refer to these steps to reset the bulb:

  • For LB130, KL110B 1.0, KL120, KL110 1.0, KL130B 1.0, KL130 1.0, LB230, LB110, LB100TKIT, LB200, and LB100

Soft Reset (keeps settings):

1. Turn the light switch controlling the bulb to the OFF position.

2. Flip the light switch on and off 3 times

Factory Reset (erases all settings):

1. Turn the light switch controlling the bulb to the OFF position.

2. Flip the light switch on and off 5 times

Note: When resetting the bulb, do not switch the bulb on and off too quickly, the time duration is around 1s.

  • For KL50, KL110B 2.0, KL60, KL60B, KL110 2.0, KL130B 2.0, KL130 2.0, KL50B, KL125 1.20, KL125 2.0, KL110 3.0, KL125 3.0, and KL135 1.0

Soft Reset (keeps settings):

1. Turn the light switch controlling the bulb to the OFF position.

2. Flip the light switch on and off 5 times

Factory Reset (erases all settings):

1. Turn the light switch controlling the bulb to the OFF position.

2. Flip the light switch on and off 10 times

Note: When resetting the bulb, do not switch the bulb on and off too quickly, the time duration is around 1s.

  • For Smart Light Strips (KL400, KL420, KL430)

Soft Reset (keeps settings):

Press and hold the light switch controller for more than 5 seconds but no more than 10 seconds and release.

Factory Reset (erases all settings):

Press and hold the light switch controller for 10 seconds or more and then release.

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