![electrical - How do I identify six light switch wires with a multimeter? - Home Improvement Stack Exchange electrical - How do I identify six light switch wires with a multimeter? - Home Improvement Stack Exchange](https://i.stack.imgur.com/DvE1K.png)
electrical - How do I identify six light switch wires with a multimeter? - Home Improvement Stack Exchange
![I can't figure out how to connect the existing wires in my kitchen light switch to the kasa smart switch. The upper black wire appears to be a common but it doesn't I can't figure out how to connect the existing wires in my kitchen light switch to the kasa smart switch. The upper black wire appears to be a common but it doesn't](https://i.redd.it/lq2dghry9bj61.jpg)
I can't figure out how to connect the existing wires in my kitchen light switch to the kasa smart switch. The upper black wire appears to be a common but it doesn't
Which wire should go to line or load on this light switch? Based on my research, I think line is connected to the top of this switch and load is the bottom.
![Belkin Official Support - How to install your Wemo WiFi Smart 3-Way Light Switch, WLS0403 in a 3-Way configuration Belkin Official Support - How to install your Wemo WiFi Smart 3-Way Light Switch, WLS0403 in a 3-Way configuration](https://s3.belkin.com/support/assets/wemo/image/316312/SF316312-001_EN_v2.png)
Belkin Official Support - How to install your Wemo WiFi Smart 3-Way Light Switch, WLS0403 in a 3-Way configuration
![4-way switch wiring help - line and load in same box - Devices & Integrations - SmartThings Community 4-way switch wiring help - line and load in same box - Devices & Integrations - SmartThings Community](https://global.discourse-cdn.com/smartthings/original/3X/b/1/b1ccfcfa661298e624779b9f6b3d8c66cac7dc8d.jpg)