Hook: Floor Medium (Blue Square)The Emergency Floodlight decoration fits into a blue medium square floor hook.
How to Get an Emergency Floodlight Decoration
Cartel Pack Decorations
The Emergency Floodlight decoration can be dropped from Steadfast ChampionsUltimate Cartel Packs, which were released on the Cartel Market and bought with Cartel Coins. Cartel Packs, including the Steadfast ChampionUltimate Cartel Pack, include a random selection of items from the Steadfast ChampionUltimate Cartel collection of items. You aren't guaranteed to get an Emergency Floodlight decoration from a Steadfast ChampionUltimate Cartel Pack, but it is one of the few ways to get an Emergency Floodlight deco apart from buying it on the GTN from another player.
If you're looking to get a Emergency Floodlight, the easiest way to get it is to head to the Galactic Trade Network (GTN) in SWTOR and buy it with credits from another player. If it's very rare and not available on the Cartel Market, you could try buying from the GTN and hope you get it.