Lights
Exit Sign Wall Mount
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 (16 POIs)
7 Days Suites (tier 5), Champions Coliseum (tier 5), Higashi Pharmaceutical (tier 5), Beanthere Coffee Company (tier 4), Calm Inn (tier 4), Jeffelon Zuckergates Estate (tier 4), KZL Radio Station (tier 3), The Serrano Residence (tier 3), Navezgane Creamery (tier 2), Special Totz (tier 2), Critic's Corner, Friendszone Sports Center, Ice Factory, Montgomery Public School, Rogue Nerds Refuge, Zillion Tower.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.