The power consumption is very low, and basically only consumes power when refreshing.No backlight is required, and the last screen display content can be for a long time when the power is turned off.Onboard level conversion chip, compatible with 3.3V and 5V microcontroller interfaces.Based on the for 40PIN GPIO interface design, suitable for series motherboards, for Nano, RDK X3.SPI control interface, can be connected to for /for Nano/RDK X3/for / STM32 and other main control boards.Size:7.5 inchesOperating voltage:3.3V/5VCommunication interface:SPIPoint spacing:0.205mmx0.204mmResolution:800x480Display color:red,black, whiteViewing angle: 170Refresh time: 4SPartial refresh: 0.4SQuick refresh: 1.5SColour:As ShownMaterial:PCBPackage Contents:1 * E-Ink DisplayOnly 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.