Kitronik 5V LED Desk Lamp Kit

Stock code: 2155

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SKU: 2155 Categories: Easy Build Kits, Lighting Kits & Modules, Electronic Project Kits Tags: blog:3d-printed-desktop-5v-led-lamp-resource, Easy Build Kits, Key stage_KS3, Kit manufacturer_Kitronik, Kit module_Self assembly kit, Kit packaging_Grip seal bag, Kit resources_Detailed notes, Kit type_Electronic, Lighting Kits & Modules, Programmable kit_No Brand: Kitronik Ltd

Kitronik 5V LED Desk Lamp Kit plus batteries

£4.45

ex VAT

Pro-Elec Alkaline AA Battery - Pack of 4

Add both to Cart

Kitronik 5V LED Desk Lamp Kit plus Soldering Iron Starter Kit

£15.50

ex VAT

Add both to Cart

This 5V LED lamp module offers a really bright light, which is compact and easy to mount. The unit is supplied with 9 white super flux LEDs, which collectively output around 16,000 mCd.

The unit incorporates current limit resistors, allowing it to be run from a 5V supply or 3 x AA batteries can be used (3 new batteries will last for around 5 hours).

The module makes a nice desk lamp when powered from our micro USB power supply (used to charge many phones, tablets and e-readers) which can be done by using our micro USB break out board.

Video:

Here is a video we have put together demonstrating the kit:

Features:

Easy to build lamp kit.
Battery or mains power.

Dimensions:

PCB Length: 45mm.
PCB Width: 45mm.

Requires:

Soldering Iron.
Solder.
Either: 5V Wall Power Unit (some modification is required – see our tutorial for the mono amplifier kit here).
Or: 3 x AA Batteries.
And: 1 x 3 x AA Battery Cage with Leads and Switch.
Or: 1 x Kitronik Micro USB Breakout Board, with Power Switch.
And: 1 x Mobile Phone Charger & Wire.

Resources:

Documents & downloads

Technical Information

Attribute	Value
PCB Length	45mm.
PCB Width	45mm.
PCB Component Count	12.
Voltage Nominal	5V.
Voltage Range	2.5V - 5.5V.
Voltage Absolute Max	6.5V.
Current Maximum at Nominal Voltage	175mA.

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Questions and answers

Could the power supply to this LED array by controlled with PWM (@5V) in order to dim the brightness?

0 votes

Q Could the power supply to this LED array by controlled with PWM (@5V) in order to dim the brightn...... Read more
Asked by Paul on March 3, 2020 12:00 am

Answered by the admin HI Paul, You could control this with PWM provided you had a suitable power supply. Best Regards Cullen Lewis

Can I run this off a 9v battery by replacing the resistors with 100 ohm?

0 votes

Q Can I run this off a 9v battery by replacing the resistors with 100 ohm?
Asked by phil on January 27, 2020 12:00 am

Answered by the admin Hi Phil, Thank you for your email, you could do that but it would not last very long I am afraid as most 9V batteries do not hold a lot of charge and I suspect you would run most of them down in 1-2 hours. Best Regards Cullen

can you use the lights in a strip instead of putting them on the grid

0 votes

Q can you use the lights in a strip instead of putting them on the grid
Asked by log on December 7, 2018 12:00 am

Answered by the admin Hi there, These style LEDs could be soldered in a strip with connecting wires but while soldered into this kit they would operate as per the grid. Best Regards Cullen

Hi, what is the average life rating of these LED's, in terms of hours?

0 votes

Q Hi, what is the average life rating of these LED's, in terms of hours?
Asked by Daniel Watson on April 23, 2018 12:00 am

Answered by the admin Hi Daniel, We don't have the exact life span of the LEDs used in this kit from our supplier, however typically LEDs have a very large life span. Some LEDs even have life spans of up to 50,000 hours. As such you should likely get quite a large amount of life out of the LEDs.

Are the resistors correct in the picture? The resistors in the picture appear to be brown, black, black, gold which would be 10 Ohms. If they are 33 Ohms, they should be orange, orange, black, gold.

0 votes

Q Are the resistors correct in the picture? The resistors in the picture appear to be brown, black...... Read more
Asked by Jim Cloughley on February 19, 2018 12:00 am

Answered by the admin Hi Jim, After double checking this I can confirm that the image appears to be incorrect. They should be 33 Ohm so I will let our web team know so we can get the photo updated. Thank you for letting me know.

Is it possible to solder this unit directly to a 5V USB cable (product code 4101)?Also, can this unit be purchased pre assembled?

0 votes

Q Is it possible to solder this unit directly to a 5V USB cable (product code 4101)?Also, can this ...... Read more
Asked by M Smith on July 10, 2017 12:00 am

Answered by the admin Hi, yes it is fine to be used with the USB cable (code 4101), you would solder the black and red cable directly to the negative and positive connection on the board. Unfortunately it isn't possible to purchase this item pre-built, however as you are from a school we may be able to arrange this if the quantity is large enough. If you email our sales team we will be able to look into this for you.

Are the '5V LED Desk Lamp Kits' energy saving LEDs?

0 votes

Q Are the '5V LED Desk Lamp Kits' energy saving LEDs?
Asked by Haytham Hamodi on March 3, 2017 12:00 am

Answered by the admin Hi Haytham, The LEDS that are used in this kit are these 3597-white-super-flux-5mm-water-clear-led-80deg-1800mcd they are not classed as energy saving but the maximum current that they draw is 20mA each, so the whole circuit only draws 180mA’s, this only works out to be 0.9Watts of power.

Can I run two (or more) of these kits in series of a 5A wall power supply? And would I need any other resistors than the ones in the kits?

0 votes

Q Can I run two (or more) of these kits in series of a 5A wall power supply? And would I need any o...... Read more
Asked by Tas Willis on February 2, 2017 12:00 am

Answered by the admin Hi Tas, You could run multiple circuits off one 5V power supply. However you would need to connect these in parallel so that each circuit got a supply of 5V’s, and a split of the available current. You would also need to make sure the power supply is rated to a high enough current draw for the amount of circuits you are connecting. Each circuit draws 175mA maximum at 5V’s, so 2 circuit could run off a 5V 500mA supply, 3-5 could run off a 5V 1A supply and so on.

Is it possible to power the desk lamp kit using solar power i.e. through a charged super capacitor?

0 votes

Q Is it possible to power the desk lamp kit using solar power i.e. through a charged super capacitor?
Asked by Martin Cassidy on November 21, 2016 12:00 am

Answered by the admin Hi Martin, The desk lamp kit take a power source ranging from 2.5V - 5.5V and at 5V’s it will draw 175mA. It would be difficult to use a super capacitor kit which has been charged by a solar cell. The kit draws a fairly high current, and a super capacitor won’t provide a steady voltage. It is difficult to provide an estimation of how well this would work as I don’t know what capacitor or solar cell you are using. You would likely be better with solar cells and rechargeable batteries.

On your home page at the moment, 3D Printed Desktop 5V LED Lamp Resource, is the lamp enclosure shown available for sale please?

0 votes

Q On your home page at the moment, 3D Printed Desktop 5V LED Lamp Resource, is the lamp enclosure s...... Read more
Asked by Anthony Pierce on September 27, 2016 12:00 am

Answered by the admin Hi Anthony, Unfortunately this isn’t a product to purchase, however it is a free resource on how to produce an enclosure for the 5V desk lamp kit. 2155-5v-led-desk-lamp-kit The design files are located to download at the bottom of the article.

Hi, do the LEDs produce much heat? I plan on using them within an enclosed PVC case.

0 votes

Q Hi, do the LEDs produce much heat? I plan on using them within an enclosed PVC case.
Asked by Jamie on May 20, 2016 12:00 am

Answered by the admin The LED’s used on these kits don’t generate any more heat than a standard Led, as such they would be fine in a PVC case.

Hi,Is it possible to include an LDR in this circuit so that the light comes on as it gets dark?

0 votes

Q Hi,Is it possible to include an LDR in this circuit so that the light comes on as it gets dark?
Asked by Andrew on May 17, 2016 12:00 am

Answered by the admin Yes it you would be able to use an LDR to trigger the circuit, the easiest way to do this would be to use the light activation circuit and connect the 5V desk lamp kit to the output on the board 2112-light-activated-switch

Can this be soldered directly to the USB power lead (product code 4101) to make a USB desk lamp?

0 votes

Q Can this be soldered directly to the USB power lead (product code 4101) to make a USB desk lamp?
Asked by Minnie Young on September 7, 2015 12:00 am

Answered by the admin A USB port outputs 5V’s, so yes you could connect the USB lead to this desk lamp kit.

Is this 5V LED lamp module available with LEDs that provide a warmer light than that supplied by the White Super Flux LEDs? If this was not possible, is it possible to purchase warmer, separate LEDs that can fit into this device?

0 votes

Q Is this 5V LED lamp module available with LEDs that provide a warmer light than that supplied by...... Read more
Asked by Hattie Lingard on October 17, 2014 12:00 am

Answered by the admin We sell yellow Super Flux LEDs, which may be better for you. Alternatively any LED that will run at 3.2V will work though they won't fit as nicely as this board was designed for the four legged footprint of the Super Flux LEDs.

is it possible to build a simple dimmer circuit for the 5V LED desk lamp kit?

0 votes

Q is it possible to build a simple dimmer circuit for the 5V LED desk lamp kit?
Asked by Harry Miers on October 6, 2014 12:00 am

Answered by the admin Yes you could use the point on a transistor where it is between fully on and fully off to limit the amount of current going into the LED light. By altering the current flow the brightness of the LEDs would be adjusted. You might need to change the resistor values in our dimmer light application note but the concept will be the same

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