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The colour-changing LED in this nightlight kit is automatically illuminated and starts to cycle through various patterns when the light sensor has detected that is dark. The kit uses a light-activated board with a colour-changing LED. The kit includes the light-activated switch project kit (part 2112), accompanied by a battery clip, battery cage and rainbow LED. All are individually bagged and ready for your students to build.

Features:

  • When in darkness, this Easy Build Kit generates an array of different coloured illuminations using a Colour Changing LED.

Contents:

Dimensions:

  • PCB Length: 53mm.
  • PCB Width: 25.5mm.

Requires:

Resources:

Note:

  • This kit requires soldering.

Documents & downloads

Related resources

2 reviews for Kitronik Dark Activated Colour Changing Night Light Kit

  1. Thomas

    We bought this product in bulk for our school kids to make little night lights. We found them really easy to use and make and they work really well! Definitely would bye again and would recommend😀

  2. Sara Khan

    Have bought these now for a number of years as it is an excellent sensor product which the kids love. Very easy to manage and all resources clear and user friendly.
    Would definitely recommend.

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Questions and answers

    Hi, could I attached a 12v DC plug to this kit and strip LED's? Would it still work then?
  1. 0 votes
    Q Hi, could I attached a 12v DC plug to this kit and strip LED's? Would it still work then?
    Asked by Anonymous on March 5, 2020 12:00 am
    Answered by the admin Hi Helen, Thank you for your email, I am afraid that 12V would damage many of the components on the board. You could use the kit below though to act as a light activated switch. https://www.kitronik.co.uk/2112-light-activated-switch.html Best Regards Cullen
  2. Can you use multiple bulbs on the board or does it only work with one?
  3. 0 votes
    Q Can you use multiple bulbs on the board or does it only work with one?
    Asked by Anonymous on November 23, 2018 12:00 am
    Answered by the admin Hi Siena, Thank you for your question, you can theoretically put more than one LED into the circuit. You would need to connect them in parallel though otherwise the voltage would be divided across them and they would no longer function. Best Regards Cullen
  4. Is there a different kit or way to make the LDR work the opposite way aka turn on when it detects light?
  5. 0 votes
    Q Is there a different kit or way to make the LDR work the opposite way aka turn on when it detects...... Read more
    Asked by Anonymous on September 7, 2018 12:00 am
    Answered by the admin Hi Sophie, The dark activated light kit uses the same PCB as our light activated switch kit (2112) as such if you swap the LDR and Potentiometer around, so the LDR is in 'R1' and the Potentiometer is in 'R2' it should work as a light activated circuit.
  6. can a 9volt battery be used in place of the 4 1.5v pack? which resistor would need to be replaced?
  7. 0 votes
    Q can a 9volt battery be used in place of the 4 1.5v pack? which resistor would need to be replaced?
    Asked by Anonymous on June 6, 2018 12:00 am
    Answered by the admin Thank you for your question, Provided that you increase the rating of the resistor and the battery can supply the necessary current draw that should be fine. You would need to replace the 220R resistor marked as R4 on the board with something around the 330 Ohm Mark. Best Cullen
  8. What's the maximum lux value which the LDR can with stand?
  9. 0 votes
    Q What's the maximum lux value which the LDR can with stand?
    Asked by Anonymous on March 7, 2018 12:00 am
    Answered by the admin Hello Pravan, I have checked the datasheet for the LDR used on this kit and there is no maximum Lux rating for the item. I have also checked with our R&D team and they have said that once you shine the maximum amount of light on the resistance of the LDR should be zero, shining more light onto the LDR should result in the resistance staying at zero.
  10. Is their a simple way to convert this circuit to run from a USB cable as per the standard colour light changing circuit?
  11. 0 votes
    Q Is their a simple way to convert this circuit to run from a USB cable as per the standard colour ...... Read more
    Asked by Anonymous on April 28, 2014 12:00 am
    Answered by the admin Sorry for the delay I wanted to test it for myself!
    Yes it works fine from USB. It normally runs from 6V but I tested it down to 4V and it worked fine. A USB lead supplies 5V so that?s ok.

    We sell a cable that goes into a USB port and the other end has two wires, positive and negative. You just solder these into the PCB where you would normally put the batteries.
    The product code for the cable is 4101 and the product page is here https://www.kitronik.co.uk/products/batteries-holders-chargers-usb-power/power-supplies-and-usb-power/usb-power-lead/
  12. Hi We are having a problem with a number of our kits/ circuits not working.Some one at school has mentioned that we may have the wrong voltage soldering iron. Is there a minium / maxium voltage soldering iron that we should be using? Thanks
  13. 0 votes
    Q Hi We are having a problem with a number of our kits/ circuits not working.Some one at school has...... Read more
    Asked by Anonymous on June 11, 2013 12:00 am
    Answered by the admin Hi Michelle, they probably were talking about the power rating of the soldering iron. For our kits we would advise something around 18-22W, more powerful soldering irons are available but they heat things up much more quickly which can mean students sometimes burn the board or components and damage the tracks. That said, the rating of the iron itself can't stop the kits from working. I'd recommend you send some photos of the kits that aren't working to support@kitronik.co.uk so I can take a look at them.
  14. How long would 4 x Duracell or equivalent batteries last?
  15. 0 votes
    Q How long would 4 x Duracell or equivalent batteries last?
    Asked by Anonymous on June 10, 2013 12:00 am
    Answered by the admin Roughly 80-90 hours of the LED being on, but that?s a very rough theoretical answer. Your mileage may vary as batteries vary a lot but when its on it will draw about 25mA and an AA battery holds approx 2000mAh.
  16. How much would you charge for around 300 circuits?
  17. 0 votes
    Q How much would you charge for around 300 circuits?
    Asked by Anonymous on April 22, 2013 12:00 am
    Answered by the admin There's a page here that explains bulk discounts, https://www.kitronik.co.uk/ordering/bulk-buy-discount-for-kits/ if you put the number you want into the product page and click add to cart the cart will show the discount you would receive.
  18. Hi Is it possible to connect more than one led in this circuit?
  19. 0 votes
    Q Hi Is it possible to connect more than one led in this circuit?
    Asked by Anonymous on March 14, 2011 12:00 am
    Answered by the admin Yes you can connect more than one LED, though the LEDs won't say in sync with each other. The number of LEDs that you can connect will be determined by the gain of the transistor I suspect that you should be able to connect 3 or 4 LEDs. If you connect more than the gain allows for you won't damage anything, it will just be a case of the LEDs not being as bright and possibly having the colour sequence restarting from the beginning.
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