The RUST Siren Light is a deployable electrical entity used to illuminate player bases with a whirling-reddish-orange circular light. Facepunch added electricity components in the Electric Anniversary update on the 7th of December, 2018.
Players may deploy siren lights on most surfaces. When using a Wiring Tool to check for ports, players will find a single power input and a single power passthrough. They require 1 electricity to power fully and may be wired in sequence without limit until the power available depletes. This light source is quite dim during the day but draws quite a bit of attention at night.
It is commonly used to represent boundaries for landing a minicopter at night. Players also have a habit of using them to block entrances to shooting floors in buildings with peakdowns.
Siren lights may be found in an assortment of low-to-mid-tier crates, as well as drops from a wide range of scientists. Players may also research them or invest scrap into the Tier 1 Workbench tech tree.