Truck lite phase 7 LED headlight

That "Sylvania Zevo" LED headlamp is in fact the Peterson light I linked in post № 10 of this thread. Sylvania buys it, private-branded, from Peterson. So does KC. Same lamp, different branding.

The Truck-Lite unit is also available in a GE box or a Philips box, too.

The cost of all of these has already come down bigtime compared to "day one", and it's still on a downward trend as cost-per-lumen comes down on the LEDs themselves.