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.
Build a robot that's an artist too!
Learn Chemistry While Creating Sweet Treats
Build 14 assorted solar robots, some of which can travel over water!
Learn all about the science of light, optics and visual perception with this wonderful kit!
Create beautiful art with this amazing sun paper!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!