About This [Voltage Regulator 12V] Input DC 8V-40V / Output DC 12V Constant / Line Current max 3A 36W( Note: Make sure the battery energy and voltage are sufficient, otherwise the converter will be in a protected state and may not work properly) [Techniques for reducing rectifier losses]The maximum conversion efficiency of the booster is up to 96%, 100% stable voltage output, 100% full power, and more than 100,000 hours of service life.(Ensure that the installation environment is well-ventilated to avoid over-tempurature protect) [Multiple device protection] Built-in protection circuit can effectively prevent over-current, over-charge, over-voltage, short-circuit.Designed with aluminum shell and silicone sealed Excellent waterproof, dustproof, shock-resistant properties [Wide application] High quality DC Converter Regulator are widely used in trucks,Starlink,LED TV,electronic system,solar panel,monitoring system and DIY etc. [You Will Get]: 1 * 8V-40V to 12V Voltage Regulator with 24-month friendly customer service. Contact us for issues; we reply and solve within 24 hours. (Note: Ensure correct positive/negative pole matching before use.) Overview Brand : ELFCULB Item Weight : 5.6 ounces Input Voltage : 40 Volts Output Voltage : 12 Volts