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The LED Authority

Fluorescent High Bay Fixture Ignites Four F54T5/HO Lamps of 120-277 Voltages.

SKU: TBN454EBU1-8 | Ordering Code: TBN454EB1-8

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Stonco T-Bay II Fixture:

  • Ignites Four F54T5/HO Lamps with Electronic Ballast for 120-277 Voltages
  • Precision die-formed 22GA steel housing
  • Architectural post painted finish eliminates exposed edges for safe handling
  • Beveled Miro 4 reflector surrounds each lamp for optimum efficiency
  • Two top access plates located at each end
Full Specs


Philips - Crescent/Stonco

Line Voltage


Number of Lamps


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.
Ballast Type

Replacement Lamp


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.
Length (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.
Width (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.
Height (in)

Watts per Bulb





Optional Chain Hangers (not incl)

Bulb Type Supplied

Type of bulb supplied with the fixture
Bulb Type Supplied

Installation Type

The way in which a fixture attaches to its relevant surface.
Installation Type
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Customer Reviews
Q & A
Wondering how many amps this fixture puts out?

The amperage is difficult to determine. The ballast will have the amps listed on the label. This can vary depending on manufacturer and type of ballast used. The amps will also vary depending on the voltage. The higher the voltage, the fewer amps the fixture will put out.

Product Support