Lockdown Gold Rod Dehumidifier - The Golden Rod Dehumidifier works by slightly increasing the air temperature inside the gun safe or other enclosure. This allows the warm air to circulate throughout the safe on a continual basis, thus eliminating humidity, mildew, and condensation. All of which are dangerous to your expensive firearm collection. Protects Against Condensation / Mildew / Rust 110 Volt Outlet power source