First, identify the problem. Is the light not turning on or is it on but not shining? If the light isn't turning on, check to see if it's plugged in and that the bulb is good. If it is plugged in and the bulb is good, then there might be a problem with the switch. If the light is shining but not very bright, you might need to replace the lightbulb. If you have to replace the lightbulb, make sure you buy one that matches the shape, size, and wattage of the original bulb. Also, unplug the light before changing the bulb.

There are a few ways to repair exterior light. One way is to replace the lightbulb. Another way is to replace the light fixture. And another way is to repair the wiring. If you need to replace the lightbulb, you can remove the old one by turning it counterclockwise. Then, insert the new bulb into the socket and turn it clockwise. If you need to replace the light fixture, you can remove it by unscrewing it counterclockwise. Then, insert the new fixture and screw it in place clockwise. If you need to repair the wiring, you should call a professional electrician.