The New RAA209100B1 A2442 Backlight Light Dirvie IC Chip LP8550 is a high-quality and 100% working chipset designed for MacBook Air models A1466 and A1465 from 2013 to 2017. It controls the backlight of the LCD screen, ensuring proper illumination and visibility. Easy to install but requires proficient soldering skills. Compatible with specific MacBook Air models only.