The Prolite PEL LED 3W NM/BULKHEAD (ROUND), cataloged under the Spartan Series, is engineered for non-maintained emergency backup lighting across commercial, industrial, and institutional infrastructure. Built in compliance with Indian Standard IS - 10322, the luminaire remains in standby mode during normal operations while connected to a ~230 V AC, 50 Hz mains line, automatically energizing its 3W multiple-LED array (utilizing GMR Light, BridgeLux, Edison, or Osram emitters) upon complete loss of supply. Below are the targeted deployment environments specified for this unit.
Underground Parking and Sub-Level Garages
Subterranean vehicular facilities and basement parking decks present challenging operational conditions involving exhaust particulates, ambient humidity, and zero natural daylight during power blackouts. Featuring an ingress protection level of IP 54/65 and a die-cast aluminium housing, this round bulkhead resists dust ingress and moisture exposure. In the event of a facility-wide electrical shutdown, the non-maintained fixture instantly supplies autonomous illumination for 180 minutes (±10%), allowing vehicle operators and pedestrians to identify ramps, drive aisles, and perimeter exit points safely.
Emergency Stairwells and Vertical Evacuation Routes
Staircases in multi-story structures demand reliable, glare-controlled illumination to prevent disorientation and tripping during an evacuation. The luminaire incorporates a milky polycarbonate diffuser that evenly disperses light from the 3W multi-LED board across concrete landings and stair treads. Weighing under 1 kg (
Hotel Corridors and Commercial Hospitality Facilities
In hospitality venues and commercial lodging, hallway pathways must maintain uninterrupted lighting failover to protect building occupants. Because it operates in non-maintained mode, the PEL LED 3W round bulkhead preserves its internal energy reserve until mains power failure is detected. The constant current charging circuit maintains the Ni-Cd / Ni-Mh / Lithium-ion rechargeable batteries (they are not included) during routine building operations, switching automatically to trickle charge upon full replenishment (16 to 24 hours recharge cycle) to preserve standby readiness.
Industrial Battery Rooms and Electrical Switchgear Enclosures
Auxiliary technical spaces such as uninterruptible power supply (UPS) areas, switchgear rooms, and battery rooms require ruggedized luminaires capable of operating in dense equipment environments. The rigid aluminium die-cast frame provides impact resistance, while the low-voltage cutoff mechanism protects internal cells (they are not included) against deep-discharge damage during prolonged outages. Once normal power returns, the system disengages battery draw immediately to begin rapid recharging.
Deployment Matrix by Installation Environment
| Deployment Location | Key Environmental Challenge | Bulkhead Design Feature Utilized |
|---|
| Underground Parking | Moisture, airborne dust, zero daylight | IP 54/65 enclosure, die-cast aluminium body, 180-minute backup |
| Staircases & Landings | Tripping hazards, direct optical glare | Milky polycarbonate diffuser, compact 165 mm diameter housing |
| Hotel Corridors | Continuous standby readiness | Non-maintained failover, trickle charge maintenance, IS - 10322 design |
| Battery & Utility Rooms | Mechanical exposure, harsh operations | Die-cast metal build, automatic cutoff to protect rechargeable cells (they are not included) |