Colour Changing 5mm Diffused LED - 750mCd

Product Code: 3527

Quick Overview

High brightness and 5mm in size, this Colour Changing LED cycles gently through a sequence of colours, making it ideal for mood lighting, toys and ornaments.

Availability: In Stock.

Excl. VAT: $0.817 Incl. VAT: $0.98
  • Buy 10 for $0.67 ($0.804 incl. VAT) each and save 18%
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OR

This LED slowly cycles through various colours, making it ideal for mood lighting, toys or ornaments.

Operating voltage: 2.7V to 5V (this LED does not require a current limit resistor)
Current (ave): 25mA
25mA Brightness (ave): 1000 mCd
Lens: Diffused
Manufacturer part: OSTB5132A


Click here for a tutorial describing how colour changing LEDs work.

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Questions:

Posted by Dave Kirwin, Friday, 11 April 2014 on product Colour Changing 5mm Diffused LED - 750mCd

Question:

Hello, I would like to have three of these operating together - will they work in tandem or would they go out of sync? Thanks, Dave

Answers:

  • Posted by Matt Macleod on Friday, 11 April 2014
    Hi Dave, the LEDs have microcontrollers in them which determine the timing, due to very slight manufacturing differences the timings are all different and they don't stay in sync. You can try the RGB LEDs we sell, those you have full control over and can get virtually any colour out of. http://www.kitronik.co.uk/products/components/leds/leds/colour-changing-and-rgb-leds/rgb-full-colour-led-5mm/
Posted by thomas, Friday, 11 April 2014 on product Colour Changing 5mm Diffused LED - 750mCd

Question:

hi i want to put these in my bathroom ceiling is that ok and what can i run them off as i dont understand voltage very well thanks tom

Answers:

  • Posted by Matt Macleod on Friday, 11 April 2014
    3xAA batteries will run a single colour changing LED for about 80 hours. If it's in a bathroom you probably want to avoid using mains transformers as they are not waterproof.
Posted by George Garcia, Friday, 10 May 2013 on product Colour Changing 5mm Diffused LED - 750mCd

Question:

The color changing LEDs I have in my radio make a strange noise through the speaker when they change color. They are the seven color changing LEDs. Every one of them I try does the same thing. What is the reason for this and is there a way I can make it stop?

Answers:

  • Posted by Aaron Sturman on Friday, 10 May 2013
    Hi George, Can I ask how you connected the LEDs? Where in the circuit are they? The amount of current the LEDs draw varies as they change colour and this is likely causing the power supply to fluctuate which in turn is upsetting the IC as it tries to decode the radio signals. Are you powering the circuit from a battery or the mains? Is it one of our FM radio kits?
Posted by chris, Thursday, 6 December 2012 on product Colour Changing 5mm Diffused LED - 750mCd

Question:

Could I put these LEDs in Series and run them off an unused phone charger. This charger might need a resistor to limit the voltage. Is that a correct assumption and is the whole idea feasible. Thanks in advance Chris

Answers:

  • Posted by Geoff Hampson on Thursday, 6 December 2012
    You don?t need a current limit resistor with these LEDs as long as they are being driven in the right voltage range. The LED is designed to run from 2.7 to 5 V and this can?t be done by a current limit resistor as the LED takes different amounts of current depending upon the colour that is being displayed. Most modern phone chargers are 5V and have a mini USB plug on them, older chargers that don?t have a USB style plug won?t necessarily be 5V. If you don?t have a 5V supply then you would just want to use a 5V regulator to make a 5V supply, these are inexpensive and simple to use, for more info see: http://www.kitronik.co.uk/products/components/semiconductors/integrated-circuits-ic-s/7805-5v-voltage-regulator/ Once you have either determined that you have a 5V supply or regulated to 5V you then want to connect the LEDs in parallel, so all the flat edges connect together and to 0V and all the other leads connect together and to 5V.
Posted by James, Monday, 19 November 2012 on product Colour Changing 5mm Diffused LED - 750mCd

Question:

Hi Was just wondering, if I were to connect 4 or 5 of these in parallel powered via USB should there be any issues with that? Thanks.

Answers:

  • Posted by Geoff Hampson on Monday, 19 November 2012
    The only thing to watch out for is in a worst case scenario the LED takes more current for certain colours, if they were all in sync which they could be briefly at the start then you should use a max working current of 50mA per LED. So worst case 5 LEDs would be 250mA. Now the USB port allows devices to take 100mA as standard, however the device can talk to the computer and ask for up to 500mA. The computer then make a decision based on what else is connected as to whether a higher current is allowed. Clearly the colour changing LEDs can?t ask for more current so you will need to decide if it?s going to be OK before plugging it in. If nothing else is connected to the computer then it will be fine.

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