Solar: With the ability to charge through exposure to sunlight. Usually requires several hours of exposure to strong sunlight. Useful in situations with limited access to electricity supply.
Battery: Battery-powered for easy placement anywhere, with no need to plug into an outlet.
Electric: Suitable for spaces with easy access to the socket.
USB: The bulbs can be powered via USB cable, for example by connecting them to a power bank.
For every 1 meter of tree height, it is recommended to use about 10 meters of lights to achieve even and circular illumination. For example, if your tree is 2.5 meters tall, you will need approximately 25 meters of lights.