The GoldenRod Dehumidifier Rod is designed to handle humidity from the interior of your safe, locker or cabinet and protects against rust by generating a low level of heat that removes moisture from the air. All GoldenRod Dehumidifier Rods come with a detachable plug for easier mounting. This model must be mounted horizontally at the bottom of an enclosure to work properly. FeaturesRemoves moisture from gun safe interiorProtects firearm investmentGuards against rustEasy install quick plug attachmentMounting brackets included110/120 volt ACLifetime Warranty