|Product ID: ewplus|
|Weight: 0.69 kg|
|Product Barcode: 5060188642244|
Dimensions175mm long x 130mm high x 88mm depth
The remote is infrared with up to 8m range, same as a TV remote with line of sight being the best but would bounce off walls or steps in your case.
Yes, you can use the on/off options on the remote control and use modes 4/5 depending on how bright you'd need the lights.