The HLC-2e is designed to protect your expensive HID lights from "Hot Starts". A hot start occurs whenever your lights are turned off and then back on before the lamp is allowed to cool off. Hot starts caused by power outages reduce your lamp's life and intensity. When the HLC-2e is connected to your lights, it will sense a power interruption and start a 15 minute time delay to keep the lights from trying to re-fire during the cool down period. The HLC-2e can also be used to delay other devices from starting for 15 minutes when power is applied. The HLC-2e is rated for 15 amps @ 120 volt. 5 year no hassle manufacturer's warranty.