Amazon offers its Prime members the GE Nighthawk Platinum Headlight Bulb 2-Pack
in seven models for $18.98
with free shipping
. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $5.58.) That's $1 under our September mention and the lowest total price we could find for any model now by $19. Sales tax is added where applicable. They purport to give up to 90% more light than standard halogen bulbs.