<b>HOW DO WE CHOOSE THIS?</b> <br>1. Count the total number of lights which will be connected to this transformer<br> 2. Find wattage on lighting performance chart on back of the light fixture packaging<br> 3. Select a compatible transformer<br> 4. Determine wire gauge.<br> <br><b>HOW IS THIS?</b> <br>High-quality Transformer<br> Withstand Harsh Outdoor Elements<br> Reduce household electrical current output from 120 volts AC to a much safer 12 volts output<br> Quick & Easy Installation<br> <br><b>WHAT FUNCTION OF THIS？</b> <br>Multiple setting mode: <br> Turn on manually, Turn off manually<br> Turn on at dusk, Turn off at dawn<br> Turn on at dusk, Turn off automatically after 4/6/8/10 hours.<br> Turn on at dusk, Turn off at any time<br> Turn at any time, Turn off at any time<br> <br><b>WHAT WE PROVIDE ABOUT THIS?</b> <br>1 transformer<br> 1 Photo Sensor<br> 12 months after-sales service<br><br> <b>WHAT YOU SHOULD KNOW ABOUT THIS?</b> <br>For the transformer's stability and longevity, we highly recommend that the total wattage of your lights had better not exceed 75% of Transformer’s capacity. (45/120/200/300/600/900 x 75%= 33.75/90/150/225/450/675W) <br> If you have any questions, please contact us through message center for more details.<br>