Saltwater Pool Chlorinator With inbuilt Pool Light Transformer & Pool Solar Controller Automatic Pool Pump & Lights function: You can set the ON-OFF time of pool pump &light which you want. Automatic Solar Controller function: You can change the set temperature of your pool Self-cleaning function: When a salt chlorinator is producing chlorine calcium builds up on the cell plates. This build up of calcium then reduces the production efficiency of the cell Your chlorinator's electronic circuitry automatically changes the electrical polarity based on the chosen cycle using the self-cleaning hours function Your chlorinator has its own inbuilt self-diagnostic feature to assist with any operational problems encoutered. If the unit detects a problem it will periodically flash a message on the display The power pack supplies 12V,100W for the pool light via the white terminals located at the base. One support 230-240V output for pool pump and another support 230-240V output for solar controller. Displaying the Pool Temperature: The Unit will display the pool temperature whenever in normal operation