Solar charge controllers are essential for ensuring the smooth functioning of a solar panel and its battery. This model features full electronic protection and fully automatic operation with a PWM charge mode (SOC). The unit has large terminals, with considerable distance between each, as well as a digital LED display. Also features temperature compensation provided by the built-in external temperature sensor. This 20A model is suitable for charging 12V/24V DC Lithium batteries. Finally, there are two built-in USB slots, allowing you to charge a wide variety of devices.
See the solar system in action!
An ancient toy featuring optical illusion and hands-on fun that never grows old!
This is a classic demonstration toy of the powers of magnetic fields!
Learn about hydrogen fuel cells with this incredible kit!
Buy Newton's Cradle or balance balls here! This classic science desk toy that will keep you amused and teach you physics.
This black scorpion specimen is great for the classroom setting!
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