Mammut TR1 with Ambient Light
Mammut’s TR1 features four LEDs, and it’s crisp and light at 2.5 ounces. But what impressed us most was the attachable Ambient Light, a flexible casing that clips onto any Mammut T-series headlamp to diffuse the light, turning the headlamp into a camping lantern. The TR1 is light enough for trail running, but the Ambient Light addition made this package ideal for backpacking, lighting up our tester’s campsite without the hassle of lugging a traditional lantern. Bottom line: Combine the TR1 with the Ambient for one of the lightest headlamp-lantern combos on the market. Ambient Light $10.95; TR1 $35. Mammut.ch
What the heck is a lumen?
Since the invention of the light bulb, light manufacturers used “candle power” to rate their lights, but it was a subjective, and often manipulated, rating system. In recent years, “lumens” have become the industry standard unit of measurement. Manufacturers use a hollow sphere to capture all the light from a lamp, then measure the output with a light sensor. Measuring the total light output with the enclosed sphere eliminates subjective measurements based on lamp “hot spots.” The higher the number of “lumens” the brighter the lamp.
