03800-U replacement lamp
ELVION ophthalmoscope replacement lamp. Voltage: 3.5V. Sold on Amazon (1 bulb).
At a glance
| Lamp reference | 03800-U |
|---|---|
| Voltage | 3.5V |
| Lamp type | Halogen |
| Pack sizes | 1 bulb |
| Where to buy | Amazon (links below) |
Checked against ELVION's Amazon listing and published lamp-reference listings on 23 September 2026.
Which instruments it fits
The 03800-U lamp reference is listed for Welch Allyn® PanOptic ophthalmoscopes 11800, 11810 and 11820. Our Amazon listing and published lamp-reference listings agree on this.
Check it matches before you order
- Find the lamp reference in your instrument's manual. It should read 03800-U.
- Check the voltage in the manual matches 3.5V.
- Do not choose by shape alone. Bulbs that look alike are not always interchangeable.
- Not sure? Send us your instrument model and we will check it.
Replacing the lamp
Switch the instrument off and let the old lamp cool before you touch it. Follow the instructions that came with your instrument.
03800-U questions
What voltage is the ELVION 03800-U bulb?
The ELVION 03800-U is a 3.5V halogen lamp. Check that your instrument's manual also lists 3.5V for the lamp before ordering.
Which instruments use the 03800-U lamp?
The 03800-U lamp reference is listed for Welch Allyn® PanOptic ophthalmoscopes 11800, 11810 and 11820. Always confirm the lamp reference in your own instrument's manual, because instruments that look alike can take different lamps.
What pack sizes are available for 03800-U?
On Amazon: 1 bulb. The Buy buttons on this page open the exact listing for each pack.
Is ELVION an original manufacturer part?
No. ELVION is an independent brand of compatible replacement lamps. Instrument brand names are trademarks of their owners and are used only to describe compatibility.
ELVION is an independent brand. Welch Allyn®, PanOptic, PocketScope, Hillrom® and Baxter® are trademarks of their respective owners. ELVION is not affiliated with or endorsed by those companies. References are used only to describe compatibility.
Not sure which bulb you need?
Send us the model number printed on your instrument. We will tell you which ELVION bulb matches before you buy.