The Coil Lamp by Castor Design is constructed of a single piece of machined aluminum, copper base, and custom spring. The lamp is powered by the Apple MagSafe adapter, supplied by the user. A strip of LEDs set into the Coil Lamp's machined aluminum head emits warm directional light, which is partially diffused by an acrylic lens. The head ends in Acme threads, which allows it to screw into the custom spring located at the top of the lamp's copper base.