SONOFF ZBMINIL2 Zigbee 3.0 Smart Switch andndash No Neutral Wire Required SONOFF ZBMINIL2 is 40 percent 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 or scene, supports two types of wall switch,etc NOTE: ZBMIINIL2 needs to be used in conjunction with a zigbee gateway, such as SONOFF zigbee bridge-P, ZB Dongle-E, ZB Dongle-P. Tiny Size Beyond Your Imagination The tiniest smart switch,can be easily fit in the smallest EU-type mounting box. Simple And Reliable No Anti-flicker module is required, it can normally work even the light is as low as 3W. Exquistite Craftsmanship For High Quality