Tower lights — also called signal towers or stack lights — are the visual backbone of any factory floor. Each coloured module communicates machine status at a glance: red for fault, yellow for warning, green for running, blue for material call, and white for general status. Here is what matters when selecting one.
Key Specifications
- Light Source: Always choose LED. LEDs last 50,000 to 100,000 hours versus 1,000 to 2,000 for incandescent, consume 60-80 percent less power, and maintain consistent brightness.
- Diameter: 55mm is the sweet spot for most machine-mounted applications. Use 70mm only for outdoor or very high mounting.
- Voltage: 24V DC is the standard for PLC-controlled machines. Integrates directly with your panel DC bus.
- Stack Count: 2-stack (red/green) for simple run/stop, 3-stack (red/yellow/green) for run/warning/fault — covers 80 percent of applications.
- Buzzer: Specify when the operator is not always in line of sight. Look for 80-90 dB output.
VXT-TL55 Series
55mm LED tower lights in 2-stack and 3-stack with optional buzzer. High-brightness LEDs, 24V DC, IP54, complete mounting accessories. Priced 35-50 percent below Autonics, Schneider, and Patlite. Ready stock Delhi NCR.