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incandescent lamp light bulb
2531
donsbulbs part:
2531 USA
I/6V/50CP/32CP/P15D30/RP11/CL
approximately 50 bulbs in stock
enter quantity:   
quantity discount:
bulb quantity:  1    2+    4+  
price per bulb:  $42    $39.90    $37.90  

2531 USA
I/6V/50CP/32CP/P15D30/RP11/CL

bulb specifications:
  
category: Incandescent lamp
volt: 6
amp: 8.33 / 5.33
watt: 50 / 32
base: P15d30 - Double Contact Prefocus Flanged
also known as Double Contact Prefocus Bayonet
also known as P15d (Europe)
also known as P30d (USA)
glass: RP11
filament: C6/C6
fil.res.: 0.72 ohm
i.lumens: 50
cp: 4
notes: 50/32CP
automobile lamp
clear glass
headlight lamp
 
uses socket:DB-P15D30-1


typical photo of 2531 USA
I/6V/50CP/32CP/P15D30/RP11/CL bulb type
(your bulb may look slightly different)


typical shape of RP11 glass envelopes
(not to scale)


typical shape of C6/C6 filament
(not to scale)


industry standards for base:
P15d30 - Double Contact Prefocus Flanged
also known as Double Contact Prefocus Bayonet
also known as P15d (Europe)
also known as P30d (USA)
(not to scale)
click for base P15d30 detail sheet


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.

I don't guarantee brand (or country) of manufacture, but you are welcome to suggest a preference. If you do require a certain brand or specific country of manufacture; read my general information.

I need your help! I'm doing everything possible 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


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


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2531 USA
I/6V/50CP/32CP/P15D30/RP11/CL

also known as
Cross-Reference:


2531/6V/50CP/32CP CANDLEPOWER-INCORPORATED
2531/6V/50CP/32CP USA
2531/7V USA
2531 CANDLEPOWER-INCORPORATED
2531 EDISON-COMPANY
2531 GENERAL-ELECTRIC
2531 MAZDA
2531 USA
13007-6V/6V/50CP/32CP CANDLEPOWER-INCORPORATED
13007-6V/6V/50CP/32CP USA
13007-6V CANDLEPOWER-INCORPORATED
13007/6V
13007/6V/50CP/32CP CANDLEPOWER-INCORPORATED
13007/6V/50CP/32CP USA
I/6V/50CP/32CP/P15D30/RP11
I/6V/50CP/32CP/P15D30/RP11/2531 USA
I/6V/50CP/32CP/P15D30/RP11/CL/2531 USA
I/6V/50CP/32CP/P15D30/RP11/CL 2531 USA
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bulb number
brand of bulb

2531 USA
I/6V/50CP/32CP/P15D30/RP11/CL

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