--- donsbulbs is closed for vacation ---

For now, I highly recommend you try this bulb dealer:

email: bulbwork@bulbworks.com

(Bulbworks is located in New Jersey, USA)

First, let me explain to you that those hard to find bulbs you are searching for, are most likely rare, and if available anymore they will be very EXPENSIVE.

In your FIRST email contact with Bulbworks, make sure you tell them the bulb number (and everything else printed on the old bulb), the bulb voltage and wattage (if known), and everything else you know about the bulb you need. They have access to many more bulbs than what is listed on their website.

As a reminder, Bulbworks is not part of donsbulbs so they can not help you with anything related to donsbulbs. And, since I'm on vacation, Bulbworks does not have access to my inventory

general info

incandescent halogen lamp light bulb
your search term:
9140 USA
cross-referenced to donsbulbs part:
(I'm on vacation so not taking orders at this time)


bulb specifications:
category: Incandescent Halogen lamp
volt: 12
amp: 3.33
watt: 40
base: PY20d
glass: T4
filament: C8
fil.res.: 3.6 ohm
m.o.l.: 3.17 inch (80.5MM)
l.c.l.: 1.24 inch (31.5MM)
burn pos: burn lamp in ANY position
i.lumens: 60
cp: 4.8
cri: 99
d.hours: 1500
notes: auxiliary lamp
foglight lamp
halogen gas
specs verified against ANSI-SR25D1997

typical shape of T4 glass envelopes
(not to scale)

typical shape of C8 filament
(not to scale)

industry standards for base:
(not to scale)

Don's grand wisdom: When multiple bulbs are in a circuit; if one bulb burns out, you really should replace all bulbs at same time. This way all bulbs will look the same. Otherwise, mixing "used" bulbs with "new" bulbs (or mixing brands) will each look different (some will be dimmer, some a different shade of color.) For example, automobile headlights and tail-lights must always be replaced in pairs or they will look odd. And, when one bulb is at it's end of life, the other will be near it's end of life too. Keep good working "used" bulbs as emergency spares.

Although few specialty light bulbs and sockets are manufactured anymore, I have decent inventories of most types in stock, plus additional sources for nearly everything. All are guaranteed brand new, most being NOS (new old stock). Shelf life is forever.

Prices usually rise as inventory is sold off. Website updated daily to reflect current stock and prices. Click add to cart button above, and order at today's prices.

My inventory does NOT keep track of brands. Expect bulbs to perform same regardless of brand. Submit order only if you don't require specific brand. Read my general information.

I need your help! I try to provide free accurate bulb data and cross-referencing. If you have additional information or found errors, click here.

Thanks to you;  donsbulbs is the world's largest resource of bulb data and cross-referencing.

Thank you, Don Schnapp


Definition of light bulb refers to lamp.
Definition of socket refers to lampholder (lamp holder).

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- all rights reserved -


any bulb  every bulb

donsbulbs part number:

can also be

9140/12V/40W/40A ECE
9140/12V/40W USA
9140/12.8V/40W CEC
9140/12.8V/40W USA
9140 CEC
9140 CPI
9140 ECE
9140 OSRAM
9140 USA
9140BP CEC
48090 NARVA
H/12V/40W/PY20D/T4/AX/1500H/H10-40W-12V-PY20D DONSBULBS
H/12V/40W/PY20D/T4/AX/1500H/H10-40W-12V-PY20D ECE
H/12V/40W/PY20D/T4/AX/1500H/H10-40W-12V DONSBULBS
H/12V/40W/PY20D/T4/AX/1500H/H10-40W DONSBULBS
H/12V/40W/PY20D/T4/AX/1500H/H10 ECE
H/12V/40W/PY20D/T4/AX/1500H H10-40W-12V-PY20D DONSBULBS
H10-40W-12V-PY20D ECE
H10/12V/40W/PY20D ECE
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Enter as much information as possible: example:
manufacture name:  Bell & Howell
model number #:  1480
model name:  Multi-Motion
size:  8mm
type of equipment:  projector
notes:  only the green one
comments:  any comments