No backlight is required, and the last screen display content can be maintained for a long time when the power is turned offThe power consumption is very low, and basically only consumes power when refreshingThe electronic ink screen can display the picture clearly under ambient light such as light and , without backlight, and is comparable to the display effect 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, etcCommunication interface SPIDisplay color: red, yellow, black, whiteOperating voltage: 3.3V/5VCommunication interface: 3-wire SPI, 4-wire SPIGrayscale level: 2Global refresh: 21sRefresh power consumption: Less than 30mW (typ.)Dot pitch: 0.1755x 0.1755mmResolution: 792x 272pixelsViewing angle: 170Material: PVCColor: As Shown(Due to different batches, the printed words on the product will be different, which does not affect use)Package Contents:1 x E-ink Screen1 x Connecting CableOnly 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.