DC 6.0-36V, Output voltage: DC 0.5-36V, Output current: 0-4.5A, Output power: 40W, Voltage resolution: 0.01V, Current resolution: 0.001A, Voltage accuracy: 0.3% + 3 words (calibrated), Current accuracy: 0.5% + 3 words (calibrated), Conversion efficiency: 88% Big and clearer color LCD display prevents segment loss after long-term use.In addition, it protects the board pad from oxidation, improves PCB conductivity and reduces line impedance and contact resistance. Silicon buttons feel soft and comfortable to touch.Compared with mechanical buttons, they can withstand long-term use and frequent pressing, without wear or malfunction, and are more and have a longer service life. buck boost converter has a built-in buzzer that provides multiple protection alarm reminders.Input anti-reverse connection protection, output anti-return protection, undervoltage protection, overvoltage protection, overcurrent protection, overpower protection, overtemperature protection, overcapacity protection, overenergy protection. Color: As shown Material: plastic Package Contents: 2pcs * buck boost converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.