Welch Allyn ophthalmoscope bulb replacement: find the lamp reference by model
Bulbs are sold by lamp reference, not by instrument model. This page matches Welch Allyn ophthalmoscope model numbers to the lamp reference Welch Allyn's own chart lists for them.
If you search for a Welch Allyn ophthalmoscope bulb replacement, you usually start from the number on your instrument, such as 11820 or 12810. The bulb itself is identified by a lamp reference, such as 03800-U or 03900-U. Welch Allyn's own lamp replacement chart connects the two. The table below repeats the ophthalmoscope entries from that chart for the lamp references ELVION sells.
Welch Allyn ophthalmoscope models and their lamp reference
This is the original manufacturer's listing (Baxter/Hillrom support chart, read 9 October 2026). It is not an ELVION fit guarantee, and the chart gives no voltage or wattage. The voltages in the third column are the ones listed on the ELVION pages. Always check your own manual too.
| Welch Allyn instrument | Lamp reference in the chart | ELVION page |
|---|---|---|
| PanOptic ophthalmoscope 11800 | 03800-U | 03800-U bulb (3.5 V listed) |
| PanOptic ophthalmoscope 11810 | 03800-U | 03800-U bulb (3.5 V listed) |
| PanOptic ophthalmoscope 11820 | 03800-U | 03800-U bulb (3.5 V listed) |
| PocketScope ophthalmoscope 11110 | 03900-U | 03900-U bulb (2.5 V listed) |
| PocketScope ophthalmoscope 12810 | 03900-U | 03900-U bulb (2.5 V listed) |
| PocketScope ophthalmoscope 13000 | 03900-U | 03900-U bulb (2.5 V listed) |
| Ophthalmoscope 11600 (marked obsolete in the chart) | 03000-U | 03000-U bulb (3.5 V listed) |
| Ophthalmoscope 11605 (marked obsolete in the chart) | 03000-U | 03000-U bulb (3.5 V listed) |
| Ophthalmoscope 11610 (marked obsolete in the chart) | 03000-U | 03000-U bulb (3.5 V listed) |
Looking for otoscopes? See the Welch Allyn otoscope bulb lookup.
Check the voltage before you order
03800-U and 03900-U are listed at different voltages. The lamp voltage has to match the instrument's supply voltage, so read the bulb voltage guide and your manual first.
If your ophthalmoscope model is not listed
The table covers only the lamp references ELVION sells. A model that is not listed may use a different reference. Check your manual, or send us your instrument model and we will tell you whether we can confirm a matching ELVION bulb. We do not guess.
Before you order
- Confirm the lamp reference in your instrument manual matches the one in the table.
- Check the lamp voltage against your handle.
- Open the ELVION page for that reference and use its Buy button to see the exact Amazon listing.
- When the bulb arrives, follow how to replace a bulb safely. Light still not working? See what to check when the light will not come on.
Sources
- Welch Allyn lamp replacement chart (PDF) (Baxter/Hillrom support): device models listed for lamp references 03000-U, 03800-U and 03900-U.
Frequently asked questions
Which lamp reference does Welch Allyn list for PanOptic ophthalmoscopes?
Welch Allyn's lamp replacement chart lists lamp reference 03800-U for PanOptic ophthalmoscopes 11800, 11810 and 11820. Confirm it in your own manual before you order.
Which lamp reference does Welch Allyn list for PocketScope ophthalmoscopes?
Welch Allyn's lamp replacement chart lists lamp reference 03900-U for PocketScope ophthalmoscopes 11110, 12810 and 13000. Confirm it in your own manual before you order.
Is the 03800-U bulb the same as the 03900-U bulb?
No. They are separate lamp references that the chart lists for different instruments, and ELVION lists them at different voltages (3.5 V and 2.5 V). Match the reference in your manual. See the bulb voltage guide.
My ophthalmoscope model is not in the table. What should I do?
The table only covers the references ELVION sells. A model that is not listed may use a different lamp reference. Check your manual or the full Welch Allyn chart, or send us the model printed on your instrument and we will tell you whether we can confirm a matching ELVION bulb.
Is ELVION made by Welch Allyn?
No. ELVION is an independent brand. Welch Allyn is a trademark of its owner and is used here only to identify the manufacturer's chart and instruments.
ELVION is an independent brand. Welch Allyn®, PanOptic, PocketScope, Hillrom®, HEINE® and other instrument names are trademarks of their respective owners. ELVION is not affiliated with or endorsed by those companies. Names are used only to identify the manuals referred to.
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.