What is halogen and how is it different than incandescent?
2pcs H4 Super Bright White Fog Halogen Bulb 55w Car Head Lamp Light Car Styling Car Light Source Parking Yellow Amber Drl - Car Headlight Bulbs( halogen) - AliExpress
PIAA | H10 XTreme White Plus Twin Pack Halogen Bulbs #15210
230010NW-X - Putco Pure Halogen Headlight Bulbs - Replaces H10 Bulbs - Night White Color - Sold in Pairs
Feit Electric 25-Watt Bright White (3000K) T4 G9 Bi-Pin Base Dimmable Decorative Halogen Light Bulb (2-Pack) BPQ25/G9/2/HDRP - The Home Depot