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Dynamic Lamps

2.5V Replacement Medical Scope Lamp for Welch Allyn 03400-U
4.6 (10 reviews)
7.99 USD
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In stock

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Need help confirming compatibility? Ask us before ordering.

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Ordering several lamps or reordering?
Ask about quantity and availability
Tell us the part number, quantity, delivery postal code and needed-by date.

Confirm before ordering

Match manufacturer code 03400-U, 2.5V, or the exact manufacturer marking on the lamp, equipment label, or service documentation. A lamp with the same wattage and voltage is not necessarily interchangeable.

Specifications

Compatible Replacement Xenon Medical Scope Bulb for Welch Allyn 03400-U

  • Used in medical illuminators, transilluminators, and otoscopes
  • 1.65 Watt  2.5 Volt
  • Single Ended
  • Contact Base
  • TL-1.5 Bulb Shape
  • 20 Hours Rated Average Life
  • 3025K Color Temperature
  • Clear Lamp
  • .70 in (17.9 mm) Max Overall Length
  • .2165 in (5.5 mm) Bulb Diameter
  • RoHS Compliant
  • Other part numbers, 03400, WA-03400-U, WA03400U, BO03400, CA1313, CL1313, 1313
Equipment compatibility

Compatible-equipment references

The following established equipment references call for the 03400-U lamp reference. Equipment configurations and production revisions can vary; confirm that the installed system calls for manufacturer code 03400-U before ordering.

  • Welch Allyn 21110 Otoscope
  • Welch Allyn 21111 Otoscope
  • Welch Allyn 24000 Otoscope
  • Welch Allyn 24011 Otoscope
  • Welch Allyn 24020 Otoscope
  • Welch Allyn 24031 Otoscope
  • Welch Allyn 27200 Illuminator
  • Welch Allyn 27250 Illuminator
  • Welch Allyn 41110 Transilluminator
  • Welch Allyn 73550 Handle Adapter

Manufacturer equipment references

The linked Welch Allyn documentation identifies instruments that use the original 03400-U lamp. Confirm that exact lamp requirement and the instrument revision before choosing this aftermarket replacement; these references are not an OEM endorsement of the replacement.

Additional or more specific manufacturer references:

  • Welch Allyn Legacy otoscope 235
  • Welch Allyn Legacy PenLite 77990
  • Welch Allyn Legacy illuminators/transilluminators 41000, 26000, 42700 and 40510

Welch Allyn 2016 Animal Health catalog, page 27. Historical models remain subject to their service instructions.

Brand alternatives

Other stocked 03400-U options

These products share the 03400-U lamp-family reference. Manufacturer specifications and dimensions can vary slightly, so verify the installed lamp marking and equipment requirement before substituting.

No other exact cross-brand alternative is currently linked in our active catalog.

Documentation & safety

Documentation

Manufacturer documentation is not currently attached to this listing.

Safety

Disconnect power and allow the lamp to cool before handling. Keep the equipment's protective enclosure in place and follow the equipment manufacturer's installation and disposal instructions.

Specifications and equipment references were retained from the existing product record and organized for easier verification. Confirm the exact lamp code because equipment revisions can vary.

Need help matching this replacement lamp?

Use our specialty lamp matching guide, or send the full lamp markings and equipment model for help. For a quantity or repeat-order inquiry, include the exact part number, quantity, delivery postal code and requested timing.
  • 5 stars: 9 (90%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (10%)
B
Billy B.
It works fine and isn't expensive

It isn't identical to the Welch Allyn bulb but close enough. Thanks to Dynamic Lamps it is available, it works, and the price is good.

M
Mark D.
Great Product. Great Service.

Lamps just what I needed for a portable otoscope. Received quickly and at a good price. Highly recommend Dynamic Lamps.

V
Vittal R.
Great

Revived my Otoscope of 30+ years

A
Angela D.
Any advise is appreciated....

I can't remove the old bulb light from the black casing in order to install the new bulb light. I received what I ordered. Packaged perfectly and quickly ! Now.....I'm at a loss......

B
Barbara U.
Correct bulb and arrived very

Correct bulb and arrived very quickly, thanks!!

A
Adrienne M.
have not yet received it!

have not yet received it!

S
Sabine A.
Blobs

I haven’t received my product.

C
Customer
Excellent Service

They reached out to me promptly and professionally. The shipping information was accurate and they made sure to follow up with our order.

P
Portia K.
Perfect fit

I purchased this bulb to replace the one on my Welch Allen pocket horoscope. It fits perfectly, and is bright. Great price and shipping speed!

L
Lisa R.
Welch Allyn 2.5V bulbs

These bulbs are much brighter than the old ones, certainly. They fit pretty snug into the handsets. The best part of the experience was the helpfulness of Dynamic lamps. My order arrived so fast and I didn't even ask for expedited shipping. Would highly recommend Dynamic lamps.