Solar deck post cap lights are fixtures that sit directly atop railing or fence posts to illuminate the deck area. These outdoor lights are run by solar power, making them an energy-efficient choice. 

How Do I Measure My Post for the Right Cap Size?

To measure your posts, use your tape measure to record the distance from the outside edge of one corner to the opposite corner. This will give you a more accurate measurement than going off the type of post. For example, a 4” x 4” wood post is more accurately around 3.5” or 3.625”. Your cap should be larger by 1/16” or 1/8" so that it fits securely. 

Do Solar Post Cap Lights Work in the Winter?

Solar post cap lights will work in the winter, however they’ll be affected by the reduced hours of sunlight. Less hours of sunlight during the day will give the solar panels less time to charge and will result in dimmer lighting and a shorter run time. 

How Long Do Solar Post Cap Lights Stay on at Night?

Solar post cap lights will stay on for approximately 6 to 12 hours at night, with an average run time of around 8 hours. In winter or on darker or cloudy days, you’ll have a shorter run time due to the reduced solar charging time. 

How Do I Install and Maintain Solar Post Cap Lights?

Installing solar post cap lights is a straightforward process. Simply ensure your post is clean and fit the light snugly to the top. To maintain your solar lights, make sure to periodically wipe the solar panel down to keep it running well. Use a soft microfiber cloth and warm soapy water to remove any debris.