The Time Delay option available on select emergency lighting units plays a critical safety role in facilities using gas vapor lighting systems. While most emergency lights turn off the moment power returns, this isn’t always ideal—especially when gas vapor lamps require time to reach full brightness.
Why Time Delay Is Important
Lighting systems that use fluorescent, metal halide, mercury vapor, or high-pressure sodium lamps have what’s known as a warm-up time—the delay between when power is restored and when these lights reach full luminosity. During this warm-up period, the facility can remain dangerously dim.
That’s where the Time Delay option comes in. It ensures your emergency lights remain on for up to 15 minutes after power is restored—just long enough for the main lighting system to return to full brightness. This helps maintain code-compliant egress lighting and improves overall safety during transition.
Available on Multiple Emergency Light Types
The Time Delay feature is available on:
When to Use Time Delay Emergency Lights
This option is especially useful in environments like warehouses, factories, and gymnasiums—anywhere high-intensity discharge (HID) or fluorescent lighting is used. It’s also ideal for:
- Cold environments with slower lamp warm-up times
- Facilities with older gas-discharge lighting
- Areas requiring uninterrupted emergency egress illumination