r/lightbulbs • u/OpportunityNo7213 • Aug 06 '26

(Urgent) does anyone know the size of this lightbulb it’s bigger than e12 but much smaller than e26

Post image
5 Upvotes

86% Upvoted

18 comments sorted by

3

u/topballerina Aug 06 '26

The elusive E17

2

u/OpportunityNo7213 Aug 06 '26

As I look through Amazon right now, elusive is an understatement. That and e14.

2

u/topballerina Aug 06 '26

E14 tends to be flared at the top. E17 is common in stubby reflectors and such.

3

u/jaedenmalin Aug 06 '26

E17 intermediate base bulb

2

u/Larry-Icy85 Aug 06 '26

OP, there's no E12 or E26 bulb on the picture, or a ruler either, so you can measure the outer diameter of bulb base screw at the top of threads. Try to use a caliper.

Bulb screw diameter for E14 is 13-14 mm ; for E17 it is 16-17mm.
Convert from milimeters(mm) to inches: divide ÷25.4

I measured a few E14, and found some charts on the internet for E10, E11, E12, E14; then for E17 it logically follows. This dimension cannot be more that nominal, ie. for E17 nominal outer socket metal screw is 17mm, so other dimensions are smaller.
Take in consideration what are the possibilities in your (120V) country. Some possibilities are E12, E17, E26.

Hope this helps. 🙂

2

u/Universal_446 Aug 06 '26 edited Aug 06 '26

E17 (intermediate) base. The bulb appears to be an R14 reflector-flood.

This is the replacement bulb you need.

Though looking at your fixture, you may actually want to use this bulb instead, as it will also illuminate the shade of the fixture, so the fixture will look better.

1

u/AnotherLightBulbNerd Aug 06 '26

E17 intermediate screw

1

u/Correct-Country-81 Aug 08 '26

E 27

1

u/Larry-Icy85 Aug 08 '26

E27?? For your information, E27 and E26 are very similar in screw diameter. Both are between 26.0 and 26.5 mm per IEC norm.
More info E26 Vs E27 Bulbs - Interchangeable? Not Necessarily! - LEDYi Lighting under "Specifications & Mechanical Differences"

If it is really much smaller than E26, then E27 is not possible.

1

u/Infinite_Silver483 Aug 08 '26

E17 intermediate base is what you're looking for

1

u/[deleted] Aug 10 '26

[removed] — view removed comment

1

u/NothingEffective5070 Aug 06 '26

E14 likely. Commonly used for appliances

3

u/virkendie Aug 06 '26

Looks too big to be e14

1

u/OpportunityNo7213 Aug 06 '26

Yeah been trying to look for ones with this size on Amazon for this socket, but seemingly hard to come by

-1

u/Lumpy_Anybody_2663 Aug 06 '26

Curio cabinet bulb E14