To modify a light fixture that is inserted on the drawing, go to
Ribbon: DM Electrical->Modify Devices-> 
Query Device
Pulldown Menu: DM Electrical->Modify Devices->Query Device
Select a light fixture on the drawing. The information in the database regarding the selected light fixture will be displayed in the Query Light Fixture dialog box.
Query Light Fixture Dialog Box
Changes can be made to the light fixture in the same way as when it was inserted. See the Insert Light Fixture section for more information.
Circuit: This field displays the circuit that the load on the light fixture is connected to. Use the Circuiting command to connect the light fixture to a new circuit.
Indoor Lighting Information
The information displayed in this area of the dialog box is used when performing indoor lighting calculations with the light fixture.
No. of Lamps: Set using the Number of Lamps field in the Light Fixture Project Schedule command.
Lumens / Lamp: Set using the Lumens / Lamp field in the Light Fixture Project Schedule command.
Lamp Depreciation: Set using the Lamp Depreciation field in the Light Fixture Project Schedule command.
Room: The room the light fixture is inserted in on the drawing.
Photometric Calculation Information
The information displayed in this area of the dialog box is related to the point-by-point lighting calculations for the queried light fixture. See the Point-by-Point Photometrics section for more information about the calculation.
Lamp Depreciation: Set using the Lamp Depreciation field in the Light Fixture Project Schedule command.
Total Lumens (General): The product of the Lumens / Lamp and Number of Lamps fields set in the Light Fixture Project Schedule command.
Total Lumens (Egress): The product of the Egress Mode Lumens / Lamp and Number of Lamps fields set in the Light Fixture Project Schedule command.
Total Lumens (IES): The total lumens set in the IES file for the fixture.
If a number is displayed, the light output from the IES file will be scaled based upon the ratio of the Total Lumens (General) or Total Lumens (Egress) value to the Total Lumens (IES) value.
If Absolute is displayed, the IES file uses absolute photometry. The total lumens for the IES file are not provided. The light output for the fixture will not be scaled based upon the Total Lumens (General) or Total Lumens (Egress) values.