$100 Super Bright Flashlight for Under $10!





Introduction: $100 Super Bright Flashlight for Under $10!

Let me say right up front that inspiration for this Instructable is credited to dchall8 for his Tactical Flashlight Instructable. I thought there had to be an easier way to mod a smaller flashlight with less hardware and one that took less time. I put this one to the test against my Surefire E2 that cost $95.

Watch the video for Test Results! You will be suprised!

Step 1: Here Is All You Need...

1. Eveready Contractor Industrial Flashlight
Model #IN215WB-S. These are impact-resistant with a heavy-duty casing that withstands a 5-foot drop test on concrete. Resistant to grease, oil, gasoline and solvents. Shock- and corrosion-resistant.

Step 2: Item #2

Three (3) 123 3 volt Lithium Batteries.

I chose Duracell Ultra but you can find them CHEAP HERE!

Step 3: Item #3

One (1) Radio Shack KPR112 Krypton Flashlight Bulb

Step 4: Last Item

5/8" Drill Bit or file.

Step 5: EZ Steps...

1. Disassemble the flashlight, removing the AA batteries (if installed) and factory lamp. Unscrew the top and then unscrew the small lamp housing to get to the lamp.
2. Install the Radio Shack lamp and re-assemble the housing
3. Drill or file down the ridges inside the flashlight to make room for the 123 batteries
4. Install the 3 Lithium Ion batteries and screw on the bottom.
5. Turn it on!
(Optional: I painted mine black satin to make it look like the real thing...and it IS!)

Here is the video of the whole project along with Test Results! Enjoy!



  • Microcontroller Contest

    Microcontroller Contest
  • Spotless Contest

    Spotless Contest
  • Science of Cooking

    Science of Cooking

We have a be nice policy.
Please be positive and constructive.




This is pointless. You change the bulb to a higher voltage one and overpower it and call it a super bright flashlight? i give it a 0\5

Umm, yeah, that's how you mod a flashlight, and it works...

Its not a mod, it is simply changing components, Did you know that kipkay makes profit every time you watch one of his videos?

But isn't a mod basicaly making some do something it normally wouldn't do?

Its overpowering a bulb.

...and thats a mod. You could save a lot of money just by building this.

Not at all, In fact, An overheating bulb can cost you a lot more than 100. AKA fire

..but the bulb doesn't overheat.

Actually the bulb does over heat and it melts the plastic lens if you let it run over 10 minutes.

@ReCreate: How is changing parts not a mod?  If you change the OEM parts on your car is it not referred to as MOD-ified?  And not that it matters but who cares if KipKay makes money from his videos?  No one is forced to pay and watch them.

ajax517, I made this with a maglite 6 cell Krypton replacement bulb (LWSA601) and it melted the flashlight just as quickly as over powering a 6v bulb. Now I use a 3watt 4.5v-9v bulb and 2 14500 batteries. Really easy, and in good flashlights the heat disipation is okay.