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Sold in Quantities of:
1 unit(s)
ALB Price: $103.98 per item
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Dimming Ballast 2 F21T5 120-277V The Lutron H3DT521CU210 Hi-Lume 3D 21-Watt 2-Lamp T5 Dimming Ballast is an affordable, high-quality ballast choice for your 21-watt fluorescent lamps. This long, low profile ballast controls up to two lamps at a time,

This Item Replaces

This product is a direct replacement for the following items:
  • E3T521C2772 LUTRON
  • LUTRON E3T521C1202


Minimum Qty 1
Brand Lutron
Technology Ballast
Actual Wattage
Equivalent Wattage
Voltage 120-277
Lumen Output
Lumens Per Watt
Color Temperature (Kelvin)
Color Rendering Index
Light Color
Bulb Shape
Base Type
Burn Position
Beam Degrees
Ansi Code
Ballast Factor
Ballast Start Type
Useful Life Hours
Dimmable Yes
Outdoor Rated No
DLC Certified No
LDL Certified No
LM79 Certified No
LM80 Certified No
TM21 Certified No
Energy Star Rated No
Manufacturer Code
Manufacturers Notes
Diameter (Inch)
Dimensions (Inch) 18(Length) • 1.10(Width) • 1.00(Height)


Warranty: 5 year warranty
Lead Time:
Ordered on Demand

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