2.5V Replacement Medical Laryngoscope Lamp for Welch Allyn 04800 U

Welch Allyn

Diagnostic Equipment & Accessories

Laryngoscope replacement bulb

RoHS compliant, as indicated in multiple distributor listings for 04800 U Compatible medical laryngoscope lamps.
Used as an accessory within CE/UKCA Marked and regulated Welch Allyn laryngoscope systems; regulatory conformity is assessed at the device/system level.

RoHS compliant, as indicated in multiple distributor listings for 04800 U Compatible medical laryngoscope lamps.
Used as an accessory within CE/UKCA Marked and regulated Welch Allyn laryngoscope systems; regulatory conformity is assessed at the device/system level.

Laryngoscope replacement bulb

Description

The 2.5V Replacement Medical Laryngoscope Lamp for Welch Allyn 04800-U is a miniature medical lamp designed for use in adult laryngoscopes and selected Welch Allyn transilluminators. Branded and sold by Welch Allyn, this 2.5 V, 0.95 W screw-base bulb (T-1.5 shape) provides a focused, warm white light suitable for standard laryngoscope blades and compatible instruments. The lamp offers a rated average life of approximately 16 hours, a colour temperature of about 2685 K and a frosted finish to help deliver even illumination. Its compact dimensions (about 0.63 in / 16.0 mm maximum overall length and 0.18 in / 4.58 mm bulb diameter) and single-ended screw base make it an exact fit for Welch Allyn 04800-series sockets used in Macintosh and Miller adult laryngoscope blades across multiple Welch Allyn series, as well as the Welch Allyn 40415 transilluminator. The bulb is RoHS compliant and cross-referenced to several industry part numbers, ensuring broad compatibility with OEM and equivalent systems.

Bnefits

Direct replacement for Welch Allyn 04800-U laryngoscope lamp, ensuring correct fit and optical performance in compatible blades and instruments.
Designed for use in medical adult laryngoscopes, delivering reliable illumination for airway visualisation.
2.5 V, approximately 0.95 W miniature lamp providing sufficient light output with a warm 2685 K colour temperature for comfortable viewing.
T-1.5 frosted bulb shape with screw base for secure mechanical and electrical connection and a smooth, diffuse beam.
Rated average life of around 16 hours of use, helping to minimise the frequency of lamp changes in busy clinical environments.
RoHS compliant construction helps reduce hazardous substance content compared with older lamp designs.
Widely cross-referenced (04800, 11381, WA-04800-U, WA04800U, BO04800, CL949, CL1986, CL70492, CL70151), making it easy to source compatible replacements.
Compatible with a broad range of Welch Allyn Macintosh and Miller blades and the Welch Allyn 40415 transilluminator, simplifying inventory management.

Indications

Replacement light source for Welch Allyn adult laryngoscope blades that specify lamp 04800 / 04800-U.
Use in Macintosh Laryngoscope sizes 2 and 3.
Use in Miller Laryngoscope sizes 2, 3 and 4.
Use in Welch Allyn 634 Laryngoscope series sizes 2–4.
Use in Welch Allyn 640 Laryngoscope series sizes 1–4.
Use in Welch Allyn 664 Laryngoscope series sizes 2–4.
Use in Welch Allyn 674 Laryngoscope series sizes 2–4.
Use in Welch Allyn 680 Laryngoscope series sizes 2–4.
Use in Welch Allyn 684 Laryngoscope series sizes 2–4.
Use in Welch Allyn 690 Laryngoscope series sizes 3–4.
Use in Welch Allyn 692 Laryngoscope series sizes 3–4.
Use in Welch Allyn 694 Laryngoscope series sizes 3–4.
Use in Welch Allyn 40415 Transilluminator, as specified by the manufacturer.

Composition

Miniature medical lamp with tungsten filament in a sealed glass envelope.
Vacuum or low-pressure gas-filled construction suitable for low-voltage medical use.
Frosted glass finish to moderate glare and provide a more uniform beam.
Metal single-ended screw base providing mechanical retention and electrical contact.
RoHS-compliant materials to limit hazardous substances such as lead and certain flame retardants.

Formulation

Lamp type: Replacement laryngoscope lamp for Welch Allyn 04800-U.
Technology: Miniature incandescent/vacuum-type medical lamp (often stocked as a compatible halogen-style replacement in some catalogs).
Voltage: 2.5 V (low voltage).
Power: approximately 0.95 W.
Base: Single-ended screw base (miniature screw, 8/32 UNC style per technical listings).
Bulb shape: T-1.5 (TL1-1/2) miniature tubular shape.
Rated average life: approximately 16 hours of operation.
Colour temperature: approximately 2685 K warm white.
Maximum overall length: about 0.63 in (16.0 mm).
Bulb diameter: about 0.18 in (4.58 mm).

Packaging

Supplied as a single replacement laryngoscope lamp (one bulb per unit) unless otherwise specified by the distributor.
Typically packaged in a small protective carton or blister to prevent mechanical damage to the glass envelope and base.
External packaging and/or label includes the part number 04800-U and cross-references (04800, WA-04800-U etc.), along with basic electrical specifications (2.5 V, ~0.95 W).
Distributed by Medisave UK as a Welch Allyn-branded laryngoscope accessory within their ENT and laryngoscope product ranges.

Usage

Ensure the laryngoscope handle is switched off and remove the batteries before changing the lamp.
Allow the existing lamp to cool before handling if it has been in recent use, as it may be hot.
Access the lamp holder on the compatible laryngoscope blade or instrument according to the device’s instructions for use.
Carefully unscrew and remove the existing 04800/04800-U lamp from its screw base socket.
Insert the new 2.5V Replacement Medical Laryngoscope Lamp for Welch Allyn 04800-U by gently screwing it into the socket until snug; do not overtighten.
Reassemble the blade and handle (or the relevant instrument), reinstall the batteries with correct polarity and switch the device on to verify correct operation.
Avoid touching the glass with bare fingers where possible; oils from skin can shorten lamp life. If the lamp is touched, gently clean the glass with a lint-free cloth before installation.
If the lamp fails to light after installation, check battery condition, polarity and lamp seating. Do not use a lamp that appears damaged, cracked or loose in the socket.

Contraindications

Do not use this lamp in devices that are not specified as compatible with Welch Allyn 04800 / 04800-U lamps.
Not suitable for use in fibre-optic laryngoscope blades that require dedicated fibre-optic or LED light sources.
Do not operate the lamp at voltages higher than 2.5 V or with incompatible power supplies, as this may cause premature failure or overheating.
Do not use a lamp that is visibly cracked, damaged or has a loose base, as this may result in breakage or poor electrical contact.

Adverse Effects

Under normal use, no direct patient adverse effects are expected, as the lamp is enclosed within the laryngoscope blade.
Improper use could lead to excessive brightness or glare if the beam is directed into the eyes for longer than necessary, causing temporary visual discomfort.
If the glass envelope breaks, sharp fragments may cause cuts or injury; broken lamps should be handled with care and disposed of safely.
Overheating due to incorrect voltage or prolonged continuous operation beyond manufacturer recommendations could potentially damage the blade or handle and, in extreme cases, pose a burn hazard upon contact.

Storage Conditions

Store unused lamps in their original protective packaging until ready for installation.
Keep in a cool, dry place away from excessive humidity, dust and direct sunlight.
Avoid mechanical shock or vibration that could damage the filament or crack the glass.
Do not store heavy items on top of the lamp packaging to prevent crushing.
Keep out of reach of children and untrained personnel to reduce risk of breakage or misuse.