How does a light with two switches work? For example, the light at the top of the stairs might have a switch at the bottom and the top. - Quora
![KOMIGAN Intelligent Motion Sensor Cascading Style LED Stair Lighting Kit KMG-3233, with 35.4 Inches (90 cm) Long Aluminum LED Light Bar (Warm White 3000K, 16 Stairs) - Amazon.com KOMIGAN Intelligent Motion Sensor Cascading Style LED Stair Lighting Kit KMG-3233, with 35.4 Inches (90 cm) Long Aluminum LED Light Bar (Warm White 3000K, 16 Stairs) - Amazon.com](https://m.media-amazon.com/images/I/61DWvSO3WVL._AC_UF894,1000_QL80_.jpg)
KOMIGAN Intelligent Motion Sensor Cascading Style LED Stair Lighting Kit KMG-3233, with 35.4 Inches (90 cm) Long Aluminum LED Light Bar (Warm White 3000K, 16 Stairs) - Amazon.com
On my two-gang light switch, why does the second switch only work if the other switch is also turned on? - Quora
![I finished my basement and there is a light switch at the top and bottom of the steps. I turn on the switch to go down I finished my basement and there is a light switch at the top and bottom of the steps. I turn on the switch to go down](https://ww2.justanswer.com/uploads/AS/AssuredElectrical/2014-07-14_115241_basement_renovation.jpg)