Input voltage: 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 (calibrable), conversion efficiency: 88%. Larger and clear color LCD display prevents segment loss after long-term use. In addition, it can protect the circuit board pads from oxidation, improve PCB conductivity and reduce line impedance and contact resistance. Silicone buttons are soft and comfortable to touch. Compared with mechanical buttons, they can withstand long-term use and frequent pressing without wear or failure, more and longer service life. DC buck-boost converter has a built-in buzzer to provide multiple protection alarm reminders. Input reverse connection protection, output backflow protection, undervoltage protection, overvoltage protection, overcurrent protection, overpower protection, overtemperature protection, overtime protection, overcapacity protection, and overenergy protection. Color: As shown Material: plastic Package Contents: 1pcs x 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.