ETC 7060B7019 Source Four Socket Assembly option-group-GFW-MIC-QRTOP The ST-132 also comes with

The ST-132 also comes with a square tube T-Bar that will accommodate 4 fixtures that can be attached with the included bolts

The V13H134A32 replacement air filter is designed to replace the original air filter included with the PowerLite 1221

and 60°x 10° diffuser plates which can be fixed to the front of the fixture

Can accommodate up to 8 lighting fixtures

Designed for truss or pipe 1

ETC 7060B7019 Source Four Socket Assembly option-group-GFW-MIC-QRTOP The ST-132 also comes withETC 7060B7019 Source Four Socket Assembly Replacement socket assembly for Source Four ellipsoidals and Source Four Jr ellipsoidals, rated up to 750 watts.