1、This power electronic transformer can convert 220V to 12V, improve power quality. 2、Full power, large allowance, stable output voltage, no noise. 3、Reliable and practical, can support dimming /segmentation / remote control. 4、Ultra thin shell case, compact size and light weight, easy to install. 5、Optimized circuit matching design ensures more stable and flexible transmission. Features: This power electronic transformer can convert 220V to 12V, improve power quality. Full power, large allowance, stable output voltage, no noise. Reliable and practical, can support dimming /segmentation / remote control. Ultra thin shell case, compact size and light weight, easy to install. Optimized circuit matching design ensures more stable and flexible transmission. Specification: Condition: brand new Weight: 60-106g/2.1-3.7oz Power: 20-60W Size: 6.5 * 3.5 * 2.1cm / 2.6 * 1.4 * 0.8in Adaptation range: low voltage lamp--20W Lamp beads 3pcs can be used, more than 3pcs need to use a higher wattage transformer to be able to withstand. Selection method of electronic transformer: 1. Choose the same transformer power according to the original lamp; 2. Choose according to the total power of the total number of lamps. Package List: 1 x Electronic Transformer Note: 1. Input line (red line) IN: 220V-240V; Output line (gray line and white line)OUT: 12V. 2. This product is dedicated to halogen G4 lamp cups or halogen G4 lamp beads and cannot be used on LED.