The Nanlux NL Mount Projection Adapter (AS-PJA-NLM) is a specialized optical adapter designed for the Nanlux Evoke series of high-output LED fixtures. Its main purpose is to let you use certain third-party projection attachments (Leko/ellipsoidal-style optics) on lights that use Nanlux's proprietary NL mount. We supply them with source 4 zoom lens tubes. 15-30º or 25-50º are available.