Frequently Asked Questions

What are power outage lights?

Power outage lights are everyday LED light bulbs that also work in a power outage.

How do power outage lights work?

Designed for everyday use, power outage light bulbs operate just like standard LED light bulbs in lamps and fixtures. In a power failure or blackout, power outage lights sense the power cut and automatically switch to power provided by a self-contained rechargeable backup battery. When power is restored, the internal battery recharges automatically whenever the light is on.

Does the light bulb turn on automatically when the power goes out?

It depends. If the light was on when the power went out, it will come back on in one second. If the lamp or fixture was turned off when the power went out, you will need to turn it on using the lamp or wall switch. This functionality avoids the situations of a light waking you up during a night time power outage, or the running down the bulb's internal battery during a daytime power outage.

How long does the battery last?

Depending on use, at least 3 to 5 years.

How long does it take to charge the battery?

Your Safelumin bulbs will arrive partially charged. We recommend charging them for a minimum of 6 hours to attain a full charge. To insure that the bulb is fully charged for a power outage, Safelumin recommends using the light at least 6 hours every 60 days.

How long will the light stay on in a power outage?

A fully-charged battery should last approximately three hours. The average power outage in the United States lasts less than two hours. Since the light can be turned on or off using the lamp or fixture's switch, battery can be conserved. In a longer power outage event, you can manage your light by rotating use of your other power outage bulbs.

Are there any fixtures where the bulbs will not work?

Safelumin bulbs do not work on dimmer switches and are not compatible with incandescent or halogen light bulbs in the same fixture or electrical circuit. For instance, when installing a bulb in a three-light-bulb fixture, ensure that the other bulbs are Safelumin, compact fluorescent or LED bulbs. Safelumin will also not work properly on the same circuit as a ceiling fan. Safelumin is not rated for use in damp or wet areas such as in a shower. Safelumin should only be used in open luminaires to avoid the possibility of heat buildup.

What are the technical specifications for Safelumin bulbs?


  • Daily use light: 500 lumens
  • Power outage light: 100 lumens
  • Rating: AC120V 60Hz 6.5W 57mA Max (HPF)
  • Bulb life: 25,000 hours
  • Battery: BPIR18350 Lithium-ion 3.7V 850mAh

How long will the battery hold a charge?

Based on Safelumin's internal testing, the battery retains an hour of charge after 5 months of no use. It is recommended that you select locations to use the bulbs where lights will be used frequently, assuring that they are fully charged in a power failure. Six hours of use every 60 days is recommended to keep the battery fully charged and ready for a power outage.

Does the bulb get dimmer the longer it is using battery power?

Safelumin is designed to provide consistently bright light while on battery power.

Can I test whether the light bulb senses a power outage by unplugging the lamp?

While it is logical to assume that unplugging a lamp would simulate a power outage, it doesn't work that way. The lamp needs to be plugged in to sense a power outage. This feature allows you to turn the light on and off when the power is out. The light can be tested by turning off power at the electric's circuit breaker. If the lamp is off when power is cut, you will need to turn the lamp on. If the lamp is on when the power goes out, it will go off for one second and come right back on.