Lights
Black LED Light Panel, Offset 01 (POI)
CREATIVE: Requires no power and can be turned on/off when designing prefabs.
Harvest drops
Scrap Polymers× 1-2
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
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 (8 POIs)
7 Days Suites (tier 5), Champions Coliseum (tier 5), Hybrid Mining (tier 5), Navezgane County Jail (tier 5), Holvez Rent-a-Car (tier 4), Best Pals Shelter, Cell Tower #3, Patriot Pavilion.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.