No backlight is required, and the last screen display content can be maintained for a long time when the power is off The power consumption is very low, and basically only consumes power when refreshing The electronic ink screen can display the picture clearly under ambient light such as light and , without backlight, and the viewing angle is almost 180°. Because its display effect is comparable to that of traditional paper, it is often used in applications such as Applicable to shopping mall price tags, asset equipment tags, electronic shelf tags, conference name tags, etc Communication interface SPI Display color: red, black, white Operating voltage: 3.3V Communication interface: 3-wire SPI, 4-wire SPI Grayscale level: 2 Global refresh: 15s Refresh power consumption: 26.4mW (typ.) Dot pitch: 0.229x 0.228mm Standby power consumption: Less than 0.017mW Resolution: 250 x 122pixels Viewing angle: 170° Material: PVC Color: As Shown Package Contents: 1 x E-ink Screen 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.