Features: The Solar Charge Controllers features Double USB Port and outlet, allowing simultaneous charging of multiple devices, making it addition for efficiency solar power systems. With high efficiency energy conversion and intelligent charging protective, this Controllers ensures high performances with its Green plastic casing. For enthusiasts, Toy Car users, and households seek solar power sources, this Controllers meets diverses energy needs. Perfectly suited for camping trip, wilderness exploration, and remote area solar power requirements, this device offer application possibilities. Its adjustable display and setting provide user friendly operations, while the auto parameters adjustment optimizes solar panel efficiency on any roof, boats, or Toy Car. Specifications: Component: Plastic, Chip Type: As Picture Show, Eight Type to Choose Color: Green Size: 11.5x6x2cm/4.53x2.36x0.79inch Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Package includes: 1pc Solar Charge Controllers