The solar lighting kits is the same with SPS3-5W-1C if it is not connected with timer. The solar panel was charged by sun in daytime, and the spot light start to work when dusk, and working time is controlled by the timer, you could adjust the timer to control the time of lighting.

Description:
1. Bring light to your dark shed, without having to connect to your local power   grid, use free energy from the sun.
2. No need of electrical wires,  can be installed easily.
3. Smart, the solar panel is charged in daytime, and the light will start to work automatically when dusk.
4. Working time of the spot light can be adjusted by the timer, from one hour to four hours. You may adjust according to your requirements.
5. Built-in solar regulator, over charge/discharge protection.
6. Waterproof for all, IP56
7. The light can work 8-10 hours with full charge.
8. With timer function, it can save energy and also extend life of light