Lights
White Light Bulb Socket 2x2
CREATIVE: Requires no power and can be turned on/off when designing prefabs.
Salvage drops
Electrical Parts× 1-4
Extra parts when salvaged with a wrench, ratchet or impact driver.
Drops when destroyed
Iron× 5
When it collapses
Falling, it leaves 
Scrap Metal Pile (75% of the time) where it lands.
Where to find (6 POIs)
Elzner's Emporium (tier 3), Bell Lake (tier 2), Bruno's Boulevard, Freedom Fest, Navezgane Outlets, Rhythm & Brews District.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.