The power converter is compact and versatile. Do not use it near a heat source (such as a fire or a heater)4. Color: Black-DC 24V to 12V10A. High-quality materials: 24V to 12V10A power buck converter passes drop test and vibration test safety test, natural heat dissipation; -20C to 65C working temperature range for safe use and durability; mini converter module is compact and portable.