Features: Install the suction cup into the plastic bracket ▲ Installation 2. Install one end of the accessory oxygen tube on the lamp end cover hole column and the other end on the air pump outlet to ensure connection. When the air pump is working, the lamp will pro- duce bubbles Aquarium Light Instruction Manual RGBW Light Modes RF remote control Sunrise and sunset timing settings 3. Attach the suction cup to the desired position on the glass wal of the fish tank to ensure it does not fall off Oxygen pipe connected to air pump turn on electricity *The power supply and controller are not waterproof and cannot be placed in water.