Source Four PAR optics, 25/45º variable field adjustment for on-site changes, a lamp with phenomenal longevity. Source Four HID PARNel ETC’s architectural washlight fixture. ETC has received rave reviews from the entertainment and architectural fields for PAR fixtures. A precision faceted parabolic reflector in a rugged, die-cast aluminum housing is the heart of the Source Four PARNel. Couple that with the 150W, 12000 hours CDM lamp, patented wave-lens design, and easy focusing knob, better variable beam angle, 150W HID wash fixture. The Source Four HID PARNel 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 Source Four HID family uses an electronic ballast with 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 a 20A circuit than, can other manufacturers' units that operate at 2.3A. Plus, Source Four HIDs are UL listed for damp locations. Every Source Four HID PARNel fixture comes in black, white or silver as standard with custom colors available. Every Source Four HID is a non-dimmable fixture.