SONOFF ZBMINI-L2 Zigbee DIY Smart Switch Module No Neutral Wire Required 2 Way Control For Smart Home Automation Note: ZBMINI-L2 must be used with Zigbee Bridge. SONOFF ZBMINIL2 is 40% smaller than ZBMINIL, which will make it take up less space in the mounting box, suitable for most size boxes, and leave more space for DIY modification. Although ZBMINIL2 is smaller, it has many functions, no neutral wire required, two-way control, smart timer/ scene, supports two types of wall switch,etc. Tiny Size Beyond Your Imagination The tiniest smart switch, can be easily fit in the smallest EU-type mounting box. How to DIY Your Smart Dream Home? *Make sure to be powered off before wiring. Application Scenes >>>Two-way ControlAchieve two-way control for your staircase light.>>>Scene LinkageScene linkage makes your life easier.>>>Smart TimerSetting a smart timer to open your backyard lights when sunset.