Feature: 1. DELAY FUNCTION: The kit delays 3 to 5 seconds, when the brightness is in crisis state, the relay will not operate and reset frequently 2. OPTIONAL WORKING MODE: This light control switch module kit has the relay action when there is light or the relay starts when there is no light, can choose 3. ADJUSTMENT: The sensitivity of this switch kit can be adjusted, through potentiometer adjustment, clockwise adjustment, the sensitivity is increased 4. MEET NEEDS: The DIY kit with high quality relays that can withstand 1500W loads and meet the requirements of most people 5. BASIC SPECIFICATIONS: The working voltage is DC 5V, and the load is 250V 10A AC or 30V 10A DC (the current is lower than this usable range) Specification: Item Type: Light Control Switch DIY Kit Material: ABS Working Voltage: DC 5V Load: 250V 10A AC or 30V 10A DC (Current is lower than this usable range) Board Size: Approx. 3.0 x 7.0cm / 1.18 x 2.76in. Package List: 1 x Light Switch DIY Kit Note: Solder 5V relays with working voltage of 5V and solder 12V relays with working voltage of 12V