donsbulbs is closed for vacation. At this time I am not taking nor filling orders, nor dealing with emails, nor anything else. When I get back I expect to have millions of spam emails clogging my accounts so when I get back I will have to erase/reset my email accounts, so do NOT send email nor payments while I'm gone. - Don Schnapp

P.S. Good news! For now, I highly recommend you try this bulb dealer:

phone: 800-334-2852

(Bulbworks is located in New Jersey, USA)

In your FIRST 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, so I recommend you call or email them.

As a reminder, Bulbworks is not part of donsbulbs so they can not help you with anything related to donsbulbs.

general info

incandescent sealed beam lamp-par-parabolic aluminized reflector light bulb
your search term:
4049S 13V 150W USA
cross-referenced to donsbulbs part:
4049SST2 USA
(I'm on vacation so not taking orders at this time)

4049SST2 USA

bulb specifications:
category: Incandescent sealed beam lamp-PAR-Parabolic Aluminized Reflector
volt: 12.8
amp: 11.7
watt: 150
base: ST2
glass: PAR46
filament: C6
fil.res.: 1.09 ohm
m.o.l.: 3.62 inch (92MM)
d.hours: 15
notes: 300000AIPBCP
medium angle spot lamp
shielded filament
specs verified against ANSI-SR26D2002

typical shape of PAR46 glass envelopes
(not to scale)

typical shape of C6 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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any bulb  every bulb

couple of related bulb searches:

I / 12.8V / 150W / ST2 / PAR46 / BA15X7 / 15H 4049ST2 USA
I / 12.8V / 150W / ST2 / PAR46 / BA15X7 / BLUE / 15H 4049ST2BLUE USA
I / 12.8V / 150W / ST2 / PAR46 / BA15X7 / SHIELDED-FILAMENT / 15H 4049SST2 USA (this bulb)

donsbulbs part number:
4049SST2 USA

can also be

4049/S USA
4049MP-S USA
4049S/13V/150W/MP USA
4049S/13V/150W USA
4049S USA
4049SST2 USA
4049ST-S USA
21532-7 SYLVANIA
Know a cross-reference for this bulb
to add to this list?

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bulb number
brand of bulb

4049SST2 USA

have been found in equipment:

>> no equipment cross-references entered yet <<
Know any equipment using this bulb to add to this list?
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