Cell.expert via eBay offers this 14-LED Arrow Mirror Turn Signal Light in Red or Yellow for $1.09 with free shipping. That's tied with our September mention as the lowest total price we've seen. (Excluding other eBay vendors, it's a current low by $2.) These lights have a lifespan of 50,000 hours.

Note: This item ships from Hong Kong and is expected to arrive within three to eight weeks.