The Chimera 1629 POP Bank for 2x1 Fixtures is specifically made to slip over the Litepanels Gemini LED bank to soften and broaden the beam of light. No speed ring or mounting frame is required, but the bank can also slip over barndoors. The POP bank has interchangeable front screens which consist of a half and full screen. An optional small ezPOP 40° grid is available.