The elliptical Son-E lamps feature a diffuse surface and are available in versions with an integrated ballast. The Lucalox versions include an amalgam container that helps to slow down voltage spikes in the lamp, which is a common cause of failures. Shatterproof Son-E versions are suitable for food preparation areas and are FDA approved. The Son-E Twin Arc versions offer a significantly longer lifespan and allow for re-ignition under hot conditions after a power outage.