No Backlight, Power Can Be A Long Time To Maintain The Display Of The Last Screen Very Low Power Consumption, Basically Only On Refresh Spi Control Interface, Can Access For Raspberry Pi/jetson Nano/arduino/stm32 And Other Main Control Board Onboard Level Conversion Chip, Compatible With 3.3v And 5v Microcontroller Interface Provide Complete Information Manual (for Raspberry Pi/jetson Nano/arduino/stm32 And Other Sample Programs) Specification Working Voltage: 3.3v/5v Communication Interface: 3-wire Spi, 4-wire Spi Dimensions: 89.5x 38mm Display Size: 66.89 X 29.05mm Resolution: 296 * 128pixels Display Color: Black And White Gray Level: 2 Partial Refresh: 0.3s Refresh Power Consumption: 26.4mw(typ.) Sleep Current: Less Than 0.01ua (close To 0) Viewing Angle: Greater Than 170 Color: Blue Material: Plastic+metal Package Contents: 1 * Display 1 * 20cm Connection Cable Only The Above Package Content, Other Products Are Not Included. Note: Light Shooting And Different Displays May Cause The Color Of The I