Specification Brand : Treedix BulletPoint1 : Power supply: DC 5V. BulletPoint2 : Supports the I2C protocol. BulletPoint3 : Easy to use. BulletPoint4 : Including:2 pack blue 16x2 1602 lcd display BulletPoint5 : The blue 16x2 1602 lcd display Module can be used in Arduino and Raspberry pi. ExternallyAssignedProductIdentifier1 : 0765756502221 ExternallyAssignedProductIdentifier2 : 765756502221 ItemName : Treedix 2pcs HD44780 1602 LCD Display Module DC 5V 16x2 Character LCD White on Blue Blacklight ItemTypeKeyword : lcd-character-modules Manufacturer : Treedix PartNumber : LCD-K-0002 ProductDescription : Specification: Widely Used to display Characters, letters and Numbers Display: 4 lines x 20 characters Backlight: Blue with white character color LCD controller: HD44780 Pin Definition: VCC/ GND/SDL and SCA Contrast Adjust: Potentiometer Backlight Adjust: Jumper Default Address: 0x27, 0x3F Working Voltage: 5V Package Includes: 2 pcs blue 16x2 1602 lcd display