Red 5mm bike light LED with a viewing angle of 30 degrees.
Luminous intensity 1000mCd.
Pack of 50.
Red 5mm Water Clear LED - 30deg - 1000mCd, pack of 50
| Pricing: | Ex VAT | Inc VAT |
| 1+ | £4.50 (excl. VAT) | £5.40 (excl. VAT) |
In stock
Technical Information
| Attribute | Value |
|---|---|
| Forward voltage drop | 1.85V. |
| Viewing angle | 30 degrees. |
| Max forward current | 30 mA. |
| Luminous intensity | 1000 mCd (@20mA). |
| Lens types | Water clear. |
Questions and answers
-
I am thinking of buying some 5mm led bulbs to use in a science project with children in my class. They will need to make a circuit to light up the bulb. Another teacher said she did thus using a cell battery - a cr2032 I think. Will this be the right battery to use with these bulbs and would they work also with the colour changing bulbs? Thank you, Abi
-
Q I am thinking of buying some 5mm led bulbs to use in a science project with children in my class....... Read moreAsked by on November 7, 2011 12:00 amAnswered by the admin The ultra-bright red LED has a forward voltage drop of about 1.9V so in theory with a 3V CR2032 cell you would want to use a current limit resistor something like a 68 ohm or a 100 ohm. However the coin cell can only deliver a limited amount of current so in reality you are often able to get away without using a current limit resistor. The colour changing LED is rated between 2.7V and 5V so would work fine off a coin cell battery, though it won't be at full brightness again because the coin cell won't deliver enough current to run at full brightness, but it will still work fine.
To submit a question, please login or create an account
Reviews
There are no reviews yet.