Straits Lighting SL930SAF-140W-SU-RED LED Safety Light 140W 9-48V Red Zone 11666Lm Non-Dimmable Yoke Mount (20260041) This Safety Light Is Designed To Give A Visual Warning To Anyone In The Area Of An Overhead Crane. This Safety Light Reduces Incidences Of Human Error. The Moving Lines/Spots On The Floor Will Prevent Pedestrians From Walking Under A Suspended Load. These Safety Lights Use A 150W -24V Driver.