CH40-120B FC40T5 FC12T5 Circular Fluorescent Lamp Ballast
Ballast for 40W Circular $12.95 Each
Lamps ordered will be shipped the next day by USPS Priority
UPS. Large orders may qualify for a discount and may not
for next day shipment. If you do not know what lamp you require or for
lamps not listed, email
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Lamp Type: FC40 T5 T9, FC40T5, FC40T9 Circular
Class P, Type 1 Outdoor
Sound Rating: A
120V 50/60Hz .66A
Use Only Within an Electrical Enclosure
Ballast Must Be Grounded
UL Listed E240748
You can find the FC12T5/841 lamp to match this ballast here.
This is not a dimmable ballast.
Do not use with a dimmer.
Do not use in 230V applications.
This ballast is specifically made for the 40W Circular style bulbs. This
ballast is not designed for any other bulb type.
We have had customers mistakenly purchase this ballast for 27W fluorescent lamps with lower amperage requirements and it does not
work in that application.
If you have any questions about using or installing this ballast please
call technical support at 336-882-2854.
This ballast is designed to drive the FC40W circular bulbs including the
FCL40T5, FC40T5, FC12T5/841 and all other color temperature and part
number variations of this bulb. This ballast may not fit in all
fixtures. Each equipment manufacturer has their own ballast with a
variety of shapes, sizes and wiring methods. In some cases it may
require a little engineering to use this ballast in your fixture.
This ballast is 2.656"/67.47mm long, 1.743"/44.29mm wide and
1.061"/26.95mm tall. The length including the base plate is
Basic Wiring Information
The white wire is the neutral wire and goes to the white wire coming
from the wall.
The black wire is the hot wire and will go through your switch. This
means that the black wire from the wall will go up to your switch and
back down to the ballast. The switch interrupts the power supplied to
Our ballast has two red and two yellow wires coming out of the ballast.
These four wires go to the socket directly. The bulb has two filaments
and the two red wires go to one filament and the two yellow wires go to
the other filament. Lay your FC40W bulb on a table in front of you
the pins facing toward you. The circular lamp should be flat on the surface. There is a filament on the right and a
filament on the left. You can wire to the relative positions in the
socket a red wire to the upper left, a red wire to the lower left, a
yellow wire to the upper right and the other yellow wire to the lower
right. The red wires go to the filament on the left and the yellow go
to the filament on the right. It does not matter which side is red and
which side is yellow but you cannot cross the wires. A red and a yellow
will not light up a filament.
You can order the following replacement socket here.
Alternate Part Numbers: CH40120B-120V, AccuPro, Accu Pro, AP-CH40-120B, FC12 T5
Cross reference information is designed to help you find the
correct part for your application. We do not verify the accuracy of
You are responsible for ordering the correct part and we make
every attempt to help you in that process. We recommend that you
the information with the equipment manufacturer before ordering.
800 Burton Avenue, Suite 107
High Point, NC 27262
Order Line: 800-692-3051
Technical Support Line: 336-882-2854
Fax Line: 336-882-2819
Hours: 9 AM to 5 PM EST Monday through Friday
changes, invoice copies, tracking and delivery confirmation numbers,
order status, product availability, payment options, shipping quotes,
returns, damage claims
Technical Support: Help
finding a product not listed, determining the correct lamp for your
application, lamp handling and premature lamp failures
Large international orders that require special shipping arrangements
If you have compliments, complaints, suggestions, or help with
areas not listed above please contact: