Overview
The Federal Signal LSL-120R is a reliable 120VAC incandescent light module for use in the Litestak vertical stack light system. This red lens module delivers status indication across a full 360-degree radius, making it ideal for factory floors, assembly lines, and other industrial environments where machine operating status must be visible from all angles. The LSL-120R accepts both steady-burn and flash (strobe) operation when paired with the appropriate base unit and optional flasher module.
Key Features
- Incandescent lamp technology — 7,000-hour lamp life with split lens design for quick replacement
- 120VAC input — standard industrial supply voltage
- Flash capability — 70 flashes per minute strobe rate (with LSB base and flasher)
- 100mm diameter lens — polycarbonate cylinder construction resists impact and UV degradation
- UL and cUL certified — meets North American safety standards
- Easy mounting — 3/4″ pipe mount or surface mount options via LSB/LSBS base modules
- Stackable design — layer multiple color modules to create multi-condition status towers
Technical Specifications
- Input Voltage: 120VAC
- Color: Red lens
- Lens Diameter: 100 mm (3.94 in)
- Lens Material: Polycarbonate cylinder
- Current Draw: 0.130A (steady-state incandescent)
- Lamp Life: 7,000 hours (incandescent)
- Flash Rate: 70 flashes per minute (with flasher)
- Operating Temperature Range: 0°F to 120°F (-18°C to 49°C)
- NEMA Rating: NEMA 1 (indoor use)
- Height: 3.25 inches
- Certifications: UL, cUL, CSA
- Series: LSL (Incandescent); LSLD available for LED upgrade
Typical Applications
Litestak light modules are standard across manufacturing facilities for real-time machine status indication:
- Production line status indicators (running, idle, alert, error)
- CNC and industrial machinery operational displays
- Packaging and material handling equipment
- Assembly line workstation signals
- Quality control and safety status towers
- Multi-level status indication with color-coded lens stacks
The red lens is typically used to signal alarms, errors, or warning conditions requiring immediate operator attention.
Compatibility & Replacements
Compatible With
- Federal Signal LSB and LSBS base modules (pipe and surface mount)
- LSH piezo-electric horn sound modules
- LSS sound modules (32-tone dip-switch selectable)
- Optional flasher units for 120VAC operation
- Standard double-contact bayonet lamp base (incandescent retrofits)
- Color-stacked Litestak tower configurations
Replaces / Drop-In Replacement For
- Original Federal Signal Litestak LSL-series incandescent modules in red
- Identical OEM part for existing LSL-120R installations
Works With
- Manual (no controller required) — steady-on or wired to external relay/flasher
- PLC logic control via relay output to LSB strobe input
- Hardwired 120VAC industrial circuits
- Optional sound module integration for dual audible/visual signaling
