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The Business Lighting Experts

Power Sentry Electronic Emergency Ballast 120-277V, 500 Initial Lumen Output

SKU: 223NM9 | Ordering Code: PSQ500QD MVOLT M12  | UPC: 820476730016

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Product Highlights

  • Ignites up to two T5/T5HO/T8/T8HO/CFTR/CFQ lamps

Power Sentry Electronic Emergency Ballast for fluorescent fixtures. Provides 500 lumens with 90 minutes of emergency power when AC power is interrupted. 120-277 line voltage.

  • Ignites various CFL (up to 40W) and also linear fluorescent bulbs up to a 4-foot, 32W bulb.
  • For use in 1-lamp (17-40W) or 2-lamp (18-40W) applications.
  • Approved for use in damp locations
  • Frequency:  50/60hz
  • Max AC Input:  2.5W
  • Max AC Amps:  0.29
  • Minimum Dischare Time:  90 Minutes
  • Minimum Recharging Time:  24 Hours
  • Maximum Initial Light Output:  500 Lumens
Full Specs


Lithonia Lighting

Model Number


Input Volts

Initial Lumen Output

Initial Lumen Output

The lumen output at first start-up.

Number of Lamps

Ballast Type

Ballast Type

Magnetic ballasts are a legacy technology and use inductance to transform the line voltage to the voltage required to "fire" or excite the gasses in a lamp. Electronic ballasts use a variety of starting methods, and are more efficient than magnetic ballasts in converting input power to the proper lamp power and operate fluorescent lamps at higher frequencies, resulting in an overall lamp-ballast system – increasing efficacy 15% to 20% over a magnetic equivalent.
Length (in)

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
Width (in)

Width (in)

For fixtures and ballasts, width is the measurement of the total horizontal distance from left to right of the product in inches.
Height (in)

Height (in)

For ballasts and fixtures, height is the measurement of total vertical distance from the top of the product to the bottom expressed in inches.

Lamps by Wattage

1x17W-40W, 2x18W-40W


3 years limited
Ballast Lamp Type

Ballast Lamp Type

The type of bulb the ballast can fire.
AC Input (Watts)

AC Input (Watts)

The amount of watts to operate emergency lamps.
Damp Location

Damp Location

Suitable for an exterior or interior location that is subject to condensation of moisture in, on or adjacent to electrical equipment
Not For Sale In

Not For Sale In

This bulb falls within State-defined sales restrictions for the listed States.