Source Four PAR optics, four standard lenses for on-site adaptation, a lamp with phenomenal longevity. Source Four HID PAR, ETC’s architectural washlight fixture. ETC has received rave reviews from the entertainment and architectural fields for our PAR fixtures. A precision-faceted parabolic reflector in a rugged, die-cast aluminum housing is the heart of the Source Four PAR. Couple that with the 150W, 12000 hours CDM lamp, the choice of four beam angle lenses included with every fixture and great features like easy lens rotation, better 150W HID wash fixture. Source Four HID PAR gives Source Four performance with 12000 hours of low-maintenance lamp life. Perfect for locations that can't be reached often or easily. Every member of the Source Four HID family uses an electronic ballast with a power factor of greater than 95% compared to some competitors’ ballasts at less than 70%. HID ballast has an efficiency of greater than 90%. With its 1.5A operating current, safely place more Source Four HIDs on 20A circuit than other manufacturers' units that operate at 2.3A. Plus, Source Four HIDs are UL listed for damp locations. Reflector temperature control through integral heat sink fins. Every Source Four HID fixture comes in black, white or silver as standard with custom colors available. Every Source Four HID is a non-dimmable fixture.