If you are installing lights in your garden, try solar garden lights. These are the install and forget type. They come with auto switch on and off according to the sunlight. It will have a small solar panel with a bright LED. It will charge in the morning and when sunlight goes off, it will automatically switch the LED on. Below is a popular garden light from Garden Creations. A set of 8 lights costs you around $15-16.
Garden Creations JB5629 Solar-Powered LED Accent Light, Set of 8
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No wiring or electricity is required to install these Garden Creations solar-powered LED accent lights. They soak up the sun’s energy by day and shine brightly at night. The white LED lights illuminate walks, gardens, and patios. This set includes eight lights, each of which measures 4.25 inches by 4.25 inches by 13.5 inches.