ONN-M4 Industrial Multicolor LED Signal Tower Light | Customizable RYGBW & OEM Logo Product Overview The ONN-M4 modular LED signal tower light is a high-reliability visual & audible status indicator engineered for 24/7 continuous industrial operation. Adopting a multi-layer stacked modular design, it supports flexible customization of 1–5 tiers and full RYGBW (Red/Yellow/Green/Blue/White) color combinations to match diverse machine status signaling demands. Equipped with high
