Um idk where you gathered the $500 price tag but on their site they list them at $279
http://www.tlg-auto.com/Truck_Lite_7x6_Reflector_LED_Headlight_p/5017606.htm
This is the new LED headlight from Truck-Lite. It features a 1.2amperage current draw and a 45 degree light output. More light and less power consumption than the old style. They call this one the Phase 7 LED housing that uses a reflector instead of just a wall of LEDs.
This headlight will replace any sealed beam 7x6" rectangular (or sometimes called 200mm or 5x7") style lamp housing. Each LED light is a dual beam system with both high beam and low beam.
This light will replace any 5x7" H6054 style light. Sold Individually.
These LED headlights are sold individually and with a 3 year manufacturer's warranty.Long-lasting LEDs mean never having to replace another bulb!
Hard Coated Polycarbonate Lens
Anodized Aluminum Housing
Metalized Reflector
Encapsulated Circuitry
Uses 2 Light Emitting Diodes (LEDs) inside a reflector housing
3-year limited warranty
(I copied that directly from the website you posted above) Read what it says in the middle of that listing the lights are sold individually $279 x 2 = $558
