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Fluorescent Emergency Ballast - 500 Lumens - AC Output - Time Delay

120/277 Volt • 90 Minute Emergency Operation • Time Delay • AC Output •

38.99 $ Topbulb

Order Code: VSBAL500ACTD

Price: $38.99

Ships in 5-10 Days

This item usually ships in 5-10 business days after order is placed.

This fluorescent emergency ballast provides AC output and a time delay enhancement that overcomes end-of-life circuit protection. This ballasts works with or without an AC ballast to convert new or existing fluorescent fixtures into unobtrusive emergency lighting.

Operates 1 lamp in emergency mode for 90 minutes and provides up to 500 initial lumens of light output. Compatible with most one-, two-, three-, and four-lamp electronic, standard and dimming AC ballasts.


  • 1 Lamp: 17W, 32W T8
  • 1 Lamp: 20W, 40W T12
  • 1 Lamp: 14W T5
  • 1 Lamp: 13W, 18W, 26W, 32W CFL 4-pin
  • 1 Lamp: 18W,  24W, 36W Long CFL 4-pin


  • Dual 120/277 voltage
  • Charge rate/power “ON” LED indicator light and push-to-test
    switch for mandated code compliance testing
  • 2.4V long-life, maintenance-free, rechargeable Sealed NiCd
  • Internal solid-state transfer switch automatically connects
    the internal battery to fluorescent lamp for minimum
    90-minute emergency illumination
  • AC output ensures compatibility with newer lamp technologies and helps prolong lamp life
  • Time delay enhancement to overcome end-of-life circuit protection
  • Fully automatic solid-state, two-rate charger initiates battery
    charging to recharge a discharged battery in 24 hours


  • Suitable for installation inside, on top or in remote of the
  • Can be used in both switched and unswitched fixtures
  • UL listed for factory or field installation

Dimensions: 9.5" x 2.4" x 1.5"

See document below for complete specifications.


About Topbulb Best Source

Topbulb, a Victoria Supply Company, has been selling lighting products for over 80 years. Topbulb sells general and specialty light bulbs and accessories to customers all over the world. The company works to maintain a full inventory of over 1 million bulbs that are ready for same-day shipping. When you place an order, Topbulb guarantees that we are providing you with the highest quality light bulbs for the lowest price from the best available source.

Watts & Number of Lamps NA
Voltage 120/277

Topbulb Order Code VSBAL500ACTD
Brand Topbulb Best Source