4-inch full-color electronic ink screen Using Elnk Spectra 6 (E6) technology, high contrast, high saturation color display No backlight required, the last screen display content can be maintained for a long time when the power is off Very low power consumption, basically only consumes power when refreshing Used for display applications such as shelf labels, industrial instruments, work cards, etc. Operating voltage: 3.3V Display color: E6 full color (E Ink Spectra 6) Communication interface: 2 Grayscale: 3-wire SPI, 4-wire SPI Global refresh: 19s Refresh power consumption: Less than 70mW Sleep current:Less than 0.01uA (close to 0) Resolution: 600 400pixels Viewing angle: 170 (The product appearance and printed words depending on the batch, but this does not affect use) Colour:As Shown Material:LCD+Plastic Package Contents: 1 x 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.