GstarCAD 2026 · System Variables
System Variables > L System Variables > LIGHTINGUNITS
Function Description:
The LIGHTINGUNITS system variable is used to specify whether to use generic light source or photometric lights to control light, and specify light units for drawing.
| Type | Integer |
| Saved in | Drawing |
| Initial value | 2 |
| Range | 0,1,2 |
When specified LIGHTINGUNITS to be 1 or 2, turn on photometric light; or turn on standard light.
System Variable Value:
0: do not use light units and turn standard (generic) light on
1: use the imperial light units and turn photometric light on
2: use the metric light units and turn photometric light on
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Article ID: 7670
Created: October 6, 2026
Last Updated: September 26, 2026
Author: kbadmin
Online URL: https://kb.gstarcad.com.my/article/lightingunits-system-variable-gstarcad-2026-7670.html