Features: Stepless Dimming This dimmer provides the maximum amount of stepless dimming range, allowing users to dim the lights to save more power and extend lamp life. Many Uses It is suitable for incandescent bulbs, halogen bulbs, iodine tungsten lamps, resistive buck LED bulbs, stepless dimming LED bulbs. Wide Compatibility Compatible with iOS and Android OS. Compatible with Amazon Alexa, Google home, IFTTT, etc. Multi-Function Timing, Voice control, Sharing, Overload protection, Mobile control. APP Remote Control In the network state, userscan use APP onsmart phone to remotely control turn on / off home electronics at anytime and anywhere. Specifications: Type:Wifi TouchedDimmerwall switch Touching: Off/On/Dimming Material: ABS+Tempered Color: Black, White(Optional) Switch Type: touched/App/voice control/dimming Power supply: AC 90V-250V Max. Power: 300W/ gang Max. Current: 2A / 250V Wireless: IEEE 802.11 b/g/n2.4G Security: WPA-PSK/WPA2-PSK System: for Android and iOS APP download: eWeLink Compatibility: Compatible with Google home, Amazon Alexa, IFTTT Item weight:130g / 4.58oz Package weight:155g /5.46oz Item size: 8.6*8.6*3.2cm / 3.38*3.38*1.25in Package size: 9.5*9*4cm / 3.74*3.54*1.57in NOTE: NEUTRAL WIRE REQUIRED. This Wi-Fi smart switch must be powered up by both Live & Neutral wire. There is not all kinds of the lamp/lights can work with the dimmer switch. Please kindly see below or please contact our customer service. (1)Ordinary LED lights can not be dimmed, but can set on/off. (2)The gear dimming LED is not suitable for this dimmer switch. Such as 3 gears 20%, 50%, 90%. The dimmable LED must be a resistive step-down LED lamp / stepless dimming LED lamp. (3)All energy-saving lamps are not suitable for dimmer switch. (4)Fluorescent lamps are not suitable for dimmer switch. (5)The total power of the lighting fixtures or fixtures used together cannot exceed 150W. Package Lists: 1* Smart Light Switch 2*Long Screw 1* User Manual (English/German) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.