The ETC Source Four PAR is a high-performance wash luminaire designed to deliver powerful output with reduced energy consumption. Utilizing the same HPL lamp technology found in other Source Four fixtures, it achieves brightness comparable to traditional 1000W PAR64 units while operating at just 575 to 750 watts, depending on the model. The fixture features a rugged die-cast aluminum body and a modular lens system that includes Very Narrow Spot (VNSP), Narrow Spot (NSP), Medium Flood (MFL), and Wide Flood (WFL) options, allowing users to tailor beam spreads to specific lighting needs. Tool-free lens changes and a thermally insulated lens ring enhance usability, while the optional Metal Cold Mirror (MCM) reflector minimizes heat output—ideal for performance environments requiring cooler beams. The Source Four PAR is well-suited for touring, theatrical, and architectural applications where flexibility, durability, and optical quality are essential.