2019 Buick Regal Sportback Bulb Sizes

Fog Light Bulb Front - H8

Headlight Bulb High Beam - H7

Headlight Bulb Low Beam - H7

Back Up Reverse Light Bulb - 921

• Halogen - https://amzn.to/3paMxrM 
• Led - https://amzn.to/3JGtjlw