Stupid question probably but what does the (T1) specification for LED's mean?
H. Dixon
LED info
Jul 28, 2008
5 Replies
Not a stupid question. See here:
formatting link
Diameter. For a long time, small electric lamps have been sized by eighths of an inch diameter. The number of eighths of an inch diameter is preceded by the letter T. T1=1/8th inch diameter T1 3/4=1.75/8th inch diameter (~.219 inch). T2=2/8th = 1/4 inch diameter, etc. The same diameter standard was carried over for many LED lamps, though mm diameters are also very common. 3mm is about a T1. 5mm is about a T1 1/2.
Regards,
John Popelish
Thank you!
The common 5 mm size bullet shape LEDs are the ones known as T1-3/4 LEDs.
- Don Klipstein ( snipped-for-privacy@misty.com)
(snip)
... even though only the flange around the base of them is that big.
Regards,
John Popelish
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required