SparkFun Basic Flashlight Soldering Kit

Are you new to soldering and want to learn the basics with one easy kit? This Flashlight Soldering Kit is an easy to assemble soldering kit designed to help teach the basics of through hole soldering and circuit design. This kit requires you to only solder four unique parts onto a PCB and then insert a CR2032 battery, once completed you will be provided with a simple flashlight that will light up dark areas and keep the monsters away!

Inside each Basic Flashlight Soldering Kit bag is a PCB, a small coin cell battery, a battery holder, an LED, a resistor, and a switch. On the front of the kit's PCB, you can see markings and outlines for the four different components to make sure everything is assembled correctly, while on the back is a schematic of the flashlight circuit showing all four components and how they interact with each other. All you need to supply is a soldering iron and solder to put your kit together!

  • 1x Basic Flashlight PCB
  • 1x Super Bright White LED
  • 1x Mini Power Switch - SPDT
  • 1x Coin Cell Battery Holder - 20mm
  • 1x Coin Cell Battery - CR2032
  • 1x Resistor - 10 Ohm, 1/4 Watt

SparkFun Basic Flashlight Soldering Kit Product Help and Resources

Flashlight Kit

October 11, 2018

This is an assembly guide for the SparkFun Flashlight Kit, a basic learn to solder kit.

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

1 Soldering

Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
See all skill levels


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Customer Reviews

4.3 out of 5

Based on 8 ratings:

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1 of 1 found this helpful:

Great practice for soldering

I don't often have reason to solder in my hardware projects but I like to stay practiced. This kit had a very informative instruction set and made for a very quick project. Could definitely buy again for anyone who wanted to get into soldering.

1 of 1 found this helpful:

2 for 1 - Bought 2, 1 for grandson and 1 for myself with one goal in mind.

I bought two of these kits, one for my grandson and one for myself and we built them together after he sat and watched the video taking notes and making sketches in his "scientist" note book. While perhaps overly simple for many, this was a great introduction to a simple circuit and learning soldering that captured his imagination and attention for longer than I've ever seen happen.

Thanks for doing the video and for offering this product. We all have to start somewhere and I think this was perfect for him and fun for me to be part of.

1 of 1 found this helpful:

Nice kit for BSA merit badge

I used this kit to help Boy Scouts learn to solder. They needed to demonstrate this skill to achieve their Electronics Merit Badge.

This kit was simple to use and provided immediate feedback regarding their soldering technique. Excessive solder meant the flashlight wouldn't switch off. A cold solder joint made a kit unreliable (pressing on the bad solder joint made the circuit work).

Great Until...

This kit did an excellent job of teaching a Scout to solder for his electronics merit badge. Unfortunately, the switch fell apart in a week.

So much better than a "blinky badge"...

I used this as an introduction to electronics and soldering for some boy scouts and it was perfect... it's a simple, easy to understand circuit that is very easy to solder.

And the boys ended up with a functional flashlight that they made themselves!!


My students love theses and learned a lot

Good option for teaching soldering skills.

I searched for inexpensive through-hole soldering teaching kits, and ultimately choose this kit for my Civil Air Patrol (CAP) squadron. The kit is well laid out and self-explanatory. Be aware that the switch is a weakness of this kit (the switch broke in about 20% of the kits we assembled). That is a "teaching moment", since one can de-solder the broken switch and replace it. Plan on that happening and order extra switches. For additional value, we will use the kit for teaching CAD/CAM and design a case for the kit that can be 3D printed. Once we do that, I will upload STL files to THINGIVERSE and update this review to add the link.

Fun and easy!

This kit was an inexpensive way for me to practice my soldering technique which still needs improvement!