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2134_large_solar_garden_light_kit

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Solar Garden Light with Battery

6.3
Exclusive to Kitronik
Teaching Notes
Key Stage 3
During the day, the solar panel charges a AA battery. When it goes dark, the board automatically switches from charging the battery to illuminating the LED.

Availability: In Stock.

Code1+ 5+ 50+
2134£6.30
(£7.56 incl VAT)
£4.90
(£5.88 incl VAT)
£4.30
(£5.16 incl VAT)
OR

Build you own DIY "Sun Jar" with our Solar Garden Light Kit. is an interesting project that uses sustainable energy to illuminate a white LED. During the day the solar panel charges an AA battery, then when it goes dark the board automatically switches from charging the battery to illuminating the LED.

The solar panel is resin encapsulated and therefore waterproof. You will need to make a waterproof enclosure for the rest of the parts. Alternatively the board has been shaped so that it will fit into an old jar.

Features:

  • Waterproof solar panel.
  • Automatically switches on when dark.

Contents:

Dimensions:

  • Length: 56mm.
  • Width: 44mm.

Requires:

Resources:

This kit is supplied in a grip seal bag. It is also available in retail packaging. For more details on this version click here.

Free samples:

Teachers can order a sample of this kit (one per school) here. You will need to select the kit from a list of all the sample kits; the stock code for this kit is 2134.
Note: this service is only offered to schools for evaluation purposes only.

Buy British:

 This kit is designed and manufactured in the UK by Kitronik.

Physical characteristics:

  • PCB Length: 56mm.
  • PCb Width: 44mm.
  • PCB Component Count: 15.

Electrical characteristics:

  • Voltage Nominal: 1.2V.
  • Current Max at Nominal Voltage: Charge at 50mA.
solar_garden_light_hawkley_hall_01
Gallery Solar Garden Light – Hawkley Hall High School
Solar Garden Lights by students at Hawkley Hall High School.
EPSON DSC picture
Gallery Sun Jar – Hardenhuish School
Sun Jar designed by students at Hardenhuish School using the Solar Garden Light Kit.
Ask Kitronik Sun Jar
Video Solar Light Jar
A video about our Solar Garden Light Kit taken from our Ask Kitronik Live event 2012.
potential-divider-voltage-divider-whiteboard-150
How A Potential Divider / Voltage Divider Works
A guide to understanding how a Potential Divider / Voltage Divider works. What is a Potential Divider / Voltage Divider? This is a simple circuit which takes advantage of the way voltages drop across resistors in series.

Questions:

Posted by Joshua Warner, Monday, 21 November 2016 on product Solar Garden Light with Battery

Question:

Would it be possible to daisy chain two of these kits together so that their combined output would be six volts instead of three? (i.e. two batteries joined together to power a larger L.E.D.)

Answers:

  • Posted by Michael Lockhart on Monday, 21 November 2016

    Hi Joshua, This kit uses a solar cell to charge a 1x AA battery, which would be 1.2V’s. There is then additional items within the kit to enable the 3V LED to receive enough voltage to turn on. Page 7 of the following document explains how this works further, https://www.kitronik.co.uk/pdf/2134_solar_garden_night_light_essentials_2_0.pdf, paragraph 4 and 5. As such it is unlikely to work combining two together. Your best solution would be to combine either a large solar cell or number of solar cells to charge a set of 4 rechargeable batteries which then supplies the power to the LED, you would need to also use a diode to stop the batteries discharging into the solar cell(s).

Posted by MikeW, Wednesday, 22 June 2016 on product Solar Garden Light with Battery

Question:

From your answers I think this powers a 3v LED - I wish to power some 1.2v lights. Do you have a kit which does this ?

Answers:

  • Posted by Geoff Hampson on Wednesday, 22 June 2016

    If you only need 1.2V to power an LED then a rechargeable battery will give you around 1.2V so you wouldn’t need anything in the way of a circuit to drive an LED (except possibly a small current limit resistor). However this would be on permanently and I suspect that you only want it to be on at night, which would require the addition of a transistor to switch it when the voltage of the solar cell drops. We don’t however have this much simpler version of the kit.

    Whilst it would be possible to change the current limit resistor on the current and use a different lower voltage LED this circuit would be very inefficient as a large amount of the battery capacity would be wasted through the resistor.


    To answer your original question no we don’t have an alternative kit.

Posted by Steve Barnes, Friday, 29 April 2016 on product Solar Garden Light with Battery

Question:

As I am not skilled in electronics or soldering, is it possible to buy this product as a cell with a fully complete board?

Answers:

  • Posted by Geoff Hampson on Friday, 29 April 2016

    We only sell a very limited number of the kits in a pre-built version and unfortunately this is not one of them.

     

    If you did want to give it a try we have a number of resources on the website to help with soldering techniques. Have a look at:

    www.kitronik.co.uk/blog/electronics-skills/

Posted by Pete, Monday, 16 November 2015 on product Solar Garden Light with Battery

Question:

Could I replace the LED with a low voltage (1.5V) electric motor, so that the motor starts when the light fails? Also what is the specification of the solar cell provided, voltage and peak current? Thanks

Answers:

  • Posted by Michael Lockhart on Monday, 16 November 2015

    The solar garden kit isn't the best kit to do this with. It has some quite complicated LED drive circuitry in it that boosts the voltage output of the battery at the expense of turning off and on many times a second. Instead I would recommend using a light activated switch kit. If you needed the solar power aspect you can create a solar battery recharger with 4xAA rechargeable batteries and 2x 3V 100mA solar cells with a diode to stop the batteries emptying back through the solar cell. The solar cell that is used in the circuit is a 3V solar cell, with 50mA maximum, however you would likely expect around 15mA in the UK. https://www.kitronik.co.uk/3603-solar-cell-as-used-in-garden-light.html 

  • Posted by Michael Lockhart on Monday, 16 November 2015

    The solar garden kit isn't the best kit to do this with. It has some quite complicated LED drive circuitry in it that boosts the voltage output of the battery at the expense of turning off and on many times a second. Instead I would recommend using a light activated switch kit. If you needed the solar power aspect you can create a solar battery recharger with 4xAA rechargeable batteries and 2x 3V 100mA solar cells with a diode to stop the batteries emptying back through the solar cell. The solar cell that is used in the circuit is a 3V solar cell, with 50mA maximum, however you would likely expect around 15mA in the UK. https://www.kitronik.co.uk/3603-solar-cell-as-used-in-garden-light.html 

Posted by Martin, Thursday, 24 September 2015 on product Solar Garden Light with Battery

Question:

I tried to improve some shop-bought solar garden lights and found the circuit a little more complicated than I anticipated, and it broke. Would I be able to wire in the garden fairy-type lights from them onto this board? Is it possible to combine the solar cells from those lights with this one to charge a more powerful battery? Apologies if I am completely misunderstanding the capabilities of these things. :)

Answers:

  • Posted by Michael Lockhart on Thursday, 24 September 2015

    Hi, it isn't possible to use this circuit to do this, it has been carefully designed to work on powering one LED which requires 3V from one battery which supplied 1.2V. Without knowing more information regarding the solar cell and LED used in the circuit you have it would be difficult to suggest a solution.

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