Water resistance is reported with an IP rating if the company adheres to the FL 1 standard. From the perspective of “did it continue working”, the Fenix passed without a hitch. While I would like a more robust finish, I am more interested in function. However, all of these issues appeared to be completely superficial and did not seem to affect the operation of the light at all. Numerous dings and nicks were plainly visible in the finish. The finish of the light was obviously damaged. The body and head of the light did not appear to be cracked. The flashlight worked after all six drops and showed no lens or switch damage. I dropped the Fenix LD15R onto concrete six times from a height of 1 meter. Drag the slider left and right to see the no flashlight/flashlight on images.įor my testing, I drop the flashlight six times onto a concrete sidewalk. It was shot with a Canon 80D DSLR (ISO 400 f. There are some streetlights in the background. This image represents a person standing between two cars at a distance of 7 yards.
However, the light is very useable and for the flashlight’s intended purposes, it is ample. You’re not going to be blown away by the light emitted by the LD15R. See my Wowtac A7 flashlight review for an example of a light that exceeded 200° F. I’ve tested other lights that can burn your hand. This would appear to correspond with the battery’s voltage dropping significantly and the flashlight trying to maintain the same level of light output.Įven though 110° may be uncomfortable to hold, it is not likely to cause you any harm. Right before the flashlight’s light output dropped, the temperature spiked above 110ËšF. This may be a result of the lower battery voltage making the flashlight less efficient at producing light.įor most of the runtime, the light hovered between 105° and 110°. Interestingly, the Fenix LD15R ran the hottest with a CR123A battery. I tested heat generation for the same three modes and battery combinations I did for output over time. There is no standard for measuring heat output from flashlights, and I do not know of any company that publishes any data on its lights. A flashlight that becomes too hot to hold may not be ideal for your needs. As companies push flashlights to be brighter, one of the common byproducts is increased heat. Heat GenerationĪll electronics produce heat during operation. After that, it dropped to about 20% and continued on for another 30 minutes. With a single Streamlight CR123A battery, the Fenix LD15R in high mode ran at 96%+ for more than 3 hours. The CR123A is able to hold more potential energy and the light’s output over time shows this. This was expected as there is a 0.6v difference between the batteries, which is about 17% less voltage. It’s pretty easy to see that an unscrupulous manufacturer could game these specs and deliver a disappointing product.Īlthough the equipment I have does not allow me to provide lumens measurements, I did measure about 17% less light output from the CR123A battery than I did from the 16340 battery.
The runtime is how long the light will run until the rechargeable flashlight winds down to a mere 10% of that initial output. This is common in the flashlight industry, but it doesn’t tell the consumer “how much light for how long?”Īccording to the FL 1 standard, the light output measurement is essentially a peak measurement that happens shortly after the light turns on. Output Over Timeįenix offers specifications of total light output (measured in lumens) and runtime for the different output modes of the LD15R.
I highly recommend reading more about my flashlight testing and the FL 1 standard here. However, my tests are my own and do not adhere to the FL1 standard. My testing is influenced by the voluntary ANSI/PLATO FL 1 flashlight standard that tests multiple samples of flashlights in laboratory conditions. Over the years, I have developed a testing protocol that is designed to measure light output over time, heat generation, impact resistance and water resistance. The first figure is for the Turbo mode while the second figure is for the High output mode to which the flashlight drops down. * Fenix states that the most powerful output mode (Turbo) automatically steps down after just a few minutes. Here are the Fenix LD15R specs: weight (as stated by the manufacturer) It rotates sequentially from low – medium – high – turbo. You can rotate through the output intensities of the white light by tapping the button once it is turned on. Once the red light comes on, it stays on even if you continue to hold the button down.
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