ITEM NAME:DC 12V to 3.3V 9.9w Buck Converter Step-Down Car Power Supply Voltage New 1x Descriptio n Description: Features: 100% brand new and high quality. Waterproof Non-isolated Input voltage: dc6-22 (make sure your input voltage is greater than 3V of the output voltage) Output voltage: 3.3v Output voltage: 9.9w Output current: 3A MAX 9V 2A Conversion efficiency: up to 90% Installation line length: 13-14cm Working temperature: - 40-80 Â ° C Specifications: Material: plastic Color: picture color Size: 37 * 26 * 22 mm Package Included: 1pcs on-board power converter Protection function: over current protection, short circuit protection, over temperature protection, reverse connection protection Whatever the ending's perfect or not, you can't disappear from my world DC 12V to 3.3V 9.9w Buck Converter Step-Down Car Power Supply Voltage New 1x.We'd like to settle any problem in a friendly manner. Protection function: over current protection, short circuit protection, over temperature protection, reverse connection protection. 1pcs on-board power converter.