- The brightest keychain flashlight is the Titan Plus by Surefire. It produces 300 lumens on its highest setting. It costs about $81.
- The brightest compact keychain flashlight is the ThruNite Ti3. It costs about $13.
The Brightest Keychain Flashlight: Titan Plus
I received this flashlight, and it’s very bright and solidly constructed. I personally carry this light on my keychain. But others might find it too large — if this is the case I would recommend the compact ThruNite Ti3 (see below) .
All Surefire flashlight are designed and built in the USA, although some components are still sourced outside the US. The company says:
We do import a few components – most notably, the finest light emitting diodes (LEDs) from top-notch manufacturers outside the country – to incorporate into our products. All of that said, we do rely on as many American-made parts and components as possible, and the assembly of these components is done under our watchful eye in the U.S. to ensure optimal quality.
The Titan Plus is available from Amazon for about $90.
The Brightest Compact Keychain Light: ThruNight Ti3
The brightest compact keychain flashlight the ThruNite Ti3 which shines with 120 lumens in its highest mode. This is a very small light — it’s only 2.76 inches (70mm) in length. It’s body is a titanium alloy, and at 0.56 ounces (16 grams) — this makes it one of the lightest keychain lights.
Here is the ThruNite Ti3 in action on its highest mode:
Personally, it’s all the light I need to travel through the forest at night.
One negative for me — when the Ti3 is first turned on, it starts in “firefly” mode (.5 lumens), and it requires a couple of more twists to get it to”medium” mode (12 lumens). However, if you keep the light off between 2 to 10 seconds and then turn it on, the light will turn on in the last mode accessed, thankfully.
The ThruNite Ti3 is available at Amazon for around $14.