Features: Four Gears: Short press the switch once to adjust the LED speed, there are four gears in total. The speed adjustment is 100% 75% 50% 25%, the darker the red light, the faster the speed, and the brighter the red light, the slower the speed. Step Number Setting: Press and hold the switch for 5 seconds to enter the step number setting mode. Short press the switch once to set the first stair, short press the switch twice to set the second stair, and so on. The controller has a corresponding blue indicator light for steps, and the blue indicator lights up every time a step is set. After the above operations are completed, press and hold again for 5 seconds to automatically save the corresponding settings. 3 Modes: Stair sensor have three working modes: photoelectric sensor, the light is on when people come, and the light is off when people leave. Smart Sensor Head: Equipped with smart sensor head, the sensing distance is 1-3 meters, and the sensing angle is 120 degree. Compact Size: The size of stair sensor about 185x78x25mm/7.28x3.07x0.98inch, voltage: dc12-24v, power: ?350w max, sensor port :2 pcs (ab), port: 32 groups (1234...). Specifications: Type: Stair Sensor Material: Plastic Color: As Picture Size: About Stair Sensor(L*W*H): 185x78x25mm/7.28x3.07x0.98inch Sensor Head(W*H): 26x19.6mm/1.02x0.77inch Voltage: DC12-24V Power: ?350W Max Sensor Port :2 PCS (AB) Port: 32 Groups (1234...) Installation Tips: 1. When the light is inserted into the controller, it must be inserted into the corresponding serial number jack 2. The controller and sensor can be put in the electric box 3. Be sure to connect the positive and negative poles, red is the positive pole and blue is the negative pole. Connect the low-voltage DC 12-24V, and do not directly connect the AC 220V. 4. It is recommended to bury the lines in advance, and wait until the stairs are decorated and the lights can be installed. 5. One sensor is at the head of the stairs and the other is at the end of the stairs Package included: 1pc x Stair Sensor 1pc x Manual 1pc x Mini Screwdriver Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. Payment must be received within 7 business days of auction closing. No combine postage discount We will ship the package within 1 business days after the payment cleared. We ship to Ebay address, and please make sure your ebay address correct before purchase. Delivery time: We thank you for your understanding on international shipping. We shipped the item quickly but the overseas shipping will be affected by many factors such as Customs processing, Post strike etc. As the Customs clearance process is different in different countries,if such kind of goods need be collected tariff buyer needs to pay for the tariff. Anyway we will try our best to avoid this kind of thing. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help Our aim is to provide Top Level Customer Service, so we will try our best to solve any problem. Please DONT leave negative or neutral feedback if you havent received item in 30 days, because we have mentioned the shipping time repeatedly. We accept return within 30 days since you received your package. Please contact us for return or refund. Our working time: Monday- Saturday (Greenwich Time 2:30A.M-11:30A.M ) ( Pacific Time:6:30P.M-3:30A.M) Please only use Ebay message to contact us (my ebay-won items-contact seller) All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your email and we will reply to you as soon as possible.