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2.5V Replacement Medical Laryngoscope Lamp for Welch Allyn 04800 U

2.5V Replacement Medical Laryngoscope Lamp for Welch Allyn 04800 U

Welch Allyn

Diagnostic Equipment & Accessories
  • 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.

Duration

Onset

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