One of the reasons individual lights stop working is that they are loose or burnt out.
Half of landscape lights not working. Check to make sure the toggle switch is in the correct position or see if. When these low voltage lights start to overheat or run down to the point where they are not producing a good amount of light the fuse will turn off the power so that the lamps will be safe. So if the transformer is properly powered start checking the light bulbs.
Most transformers have a built-in circuit breaker. If they run at a lower voltage they are dimmer and tend to go black because the Halogen Cycle does not work well and tungsten is deposited on the bulb glass. Bear in mind that you are dealing with a circuit so if a light doesnt work the entire lighting system wont work.
To wrap it up. Place the light at proper location make sure you switch them OFF so that they get fully recharge wait for 24 hours and start using them. If half a strand is working and the other half is not you probably have a loose or broken bulb.
There are three major problems that cause your outdoor lighting system to malfunction after one of these weather events. Learn what to check and how to fix itProdu. Power outage tripped GFCI and tripped breaker.
The circuit is working in 3 rooms but not working in 3 others or on the landing. If not you have the more tedious job of going down the row of unlit bulbs one at a time and swapping them for a known good bulb until you find the culprit. Are your outdoor landscape lights not working after a strong storm or a heavy rainfall.
The downlights in the rooms are controlled using dimmer switches. You will probably notice that low voltage landscape lights flicker and dim. After replacing fuses and checking that all the light were seated I plug them in and found the problem had not been resolved.

