Specifications: Converter uses imported and integrated switching regulator modules manufacturing, quality is stable and reliable. Synchronous rectification, the conversion rate is 96 percent or more, very low heat. Over voltage, over current, over temperature, short circuit, it can be auto protection, and can work in normal condition when restored. Adapter features with epoxy potting, seismic, water, moisture, dust, long term stable and reliable quality. Item Name: Step-down Module Material: ABS Product Model: K241201, K241202, K241203, K241204, K241205 Input Voltage: 24V (15V-40V) Output Voltage: 12V-0.25V~12V+0.25V Output Current: 1A/1.5A/2A/3A/4A/5A Output Power: 12W/18W/24W/36W/48W/60W Conversion Efficiency: 96 Percent Protection Level: IP67 Installation Line Length: 13cm Working Temperature: -20 Degree Celsius~80 Degree Celsius Features: Convenient, Portable, Durable, Easy to Use Size: 6cm x 2.45cm x 2cm/2.36" x 0.96" x 0.79" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Step-down Module