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Items 11-20 of 161

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  1. RELB2S40N35I
    RELB2S40N35I
    Philips Ballasts
    Item Number
    RELB2S40N35I
    MFG Item Number
    RELB2S40N35I
    Product Description
    ELE Ballast (2) F40T12 120V
    Increase
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  2. M-175-5T-CWA-K
    M-175-5T-CWA-K
    Howard Industries Ballasts, HID Series
    Item Number
    M-175-5T-CWA-K
    MFG Item Number
    M-175-5T-CWA-K
    Series
    HID
    Product Description
    MH Ballast, 175w M57, 5-Tap, CWA,
    Specifications
    Specifications
    Max Number of Lamps 1
    Voltage 120/208/240/277/480
    Ballast Tech Magnetic
    Lamp Wattage 175 W
    Lamp Type Metal Halide
    ANSI Code M57
    Circuit CWA
    Controllable/Dimmable No
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  3. EP3/32IS/MV/MC/HE
    EP3/32IS/MV/MC/HE
    Howard Industries Ballasts, Electronic Fluorescent Series
    Item Number
    EP3/32IS/MV/MC/HE
    MFG Item Number
    EP3/32IS/MV/MC/HE
    Series
    Electronic Fluorescent
    Product Description
    ELEC BALLAST (3)F32T8 120-277V
    Specifications
    Specifications
    Max Number of Lamps 3
    Ballast Tech Electronic
    Controllable/Dimmable No
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  4. ICF2S13H1LDK
    ICF2S13H1LDK
    Philips Ballasts, SMARTMATE Series
    Item Number
    ICF2S13H1LDK
    MFG Item Number
    ICF2S13H1LDK
    Series
    SMARTMATE
    Product Description
    Electronic Ballast ( (2) 13W CFL
    Specifications
    Specifications
    Max Number of Lamps 2
    Ballast Tech Electronic
    Lamp Wattage 13 W
    Lamp Type 4-Pin
    Controllable/Dimmable No
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  5. ICF2S18H1LDK
    ICF2S18H1LDK
    Philips Ballasts, SMARTMATE Series
    Item Number
    ICF2S18H1LDK
    MFG Item Number
    ICF2S18H1LDK
    Series
    SMARTMATE
    Product Description
    Electronic Ballast ( (2) 18W CFL
    Specifications
    Specifications
    Max Number of Lamps 2
    Ballast Tech Electronic
    Lamp Wattage 18 W
    Lamp Type 4-Pin
    Controllable/Dimmable No
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  6. ICF2S26H1LDK
    ICF2S26H1LDK
    Philips Ballasts, SMARTMATE Series
    Item Number
    ICF2S26H1LDK
    MFG Item Number
    ICF2S26H1LDK
    Series
    SMARTMATE
    Product Description
    Electronic Ballast (2)26W CFL
    Specifications
    Specifications
    Max Number of Lamps 2
    Ballast Tech Electronic
    Lamp Wattage 26 W
    Lamp Type 4-Pin
    Controllable/Dimmable No
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  7. ICF2S42M2LDK
    ICF2S42M2LDK
    Philips Ballasts, SMARTMATE Series
    Item Number
    ICF2S42M2LDK
    MFG Item Number
    ICF2S42M2LDK
    Series
    SMARTMATE
    Product Description
    Electronic Ballast ( (2) 42W CFL
    Specifications
    Specifications
    Max Number of Lamps 2
    Ballast Tech Electronic
    Lamp Wattage 42 W
    Lamp Type 4-Pin
    Controllable/Dimmable No
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  8. ICN2TTP40SC35I
    ICN2TTP40SC35I
    Philips Ballasts, CENTIUM Series
    Item Number
    ICN2TTP40SC35I
    MFG Item Number
    ICN2TTP40SC35I
    Series
    CENTIUM
    Product Description
    Electronic Ballast (2) 40W CFL
    Specifications
    Specifications
    Max Number of Lamps 2
    Ballast Tech Electronic
    Lamp Wattage 40 W
    Lamp Type 4-Pin
    Controllable/Dimmable No
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  9. ICN3TTP40SC35I
    ICN3TTP40SC35I
    Philips Ballasts, CENTIUM Series
    Item Number
    ICN3TTP40SC35I
    MFG Item Number
    ICN3TTP40SC35I
    Series
    CENTIUM
    Product Description
    Electronic Ballast (3) 40W CLF
    Specifications
    Specifications
    Max Number of Lamps 3
    Ballast Tech Electronic
    Lamp Wattage 40 W
    Lamp Type 4-Pin
    Controllable/Dimmable No
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
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Ballasts

A ballast is an electrical device placed in line with a load to limit current. They are widely used in lighting applications to limit and maintain current that passes through fluorescent or high-intensity discharge (HID) lamps.

Because fluorescent lamps a negative differential resistance characteristics, ballasts are necessary to prevent the current passing through the tube from rising too high. Ballasts used for this purpose are inductive, meaning they store current in a magnetic field. Other types of ballasts can function more like resistors or capacitors, or some combination of all three.

Modern ballasts are electronic, using solid-state technology to provide proper operating conditions needed to power the lamps. They are usually smaller and more efficient than their magnetic counterparts and may allow dimming using pulse-width modulation technology and high-frequency adjustments.

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