When choosing a flashlight, it’s important to understand two key performance measurements — lumens and candela.
Lumens measure the total amount of visible light emitted by the flashlight. A higher lumen count means more overall brightness, ideal for wide illumination or lighting up large areas. UltraFire flashlights range from low-lumen moonlight modes for stealth and long runtime, to ultra-bright 1800+ lumen beams for tactical use or search operations.
Candela, sometimes called “candlepower,” measures the intensity of the brightest spot within the beam. High candela is what gives a flashlight its throw — the ability to reach distant targets. A beam with high candela can cut through fog, smoke, or darkness to clearly identify objects hundreds of meters away.
In short:
More lumens = more light overall
More candela = more distance and focus
UltraFire engineers balance these two values carefully to create flashlights that deliver both wide visibility and long-distance reach — no wasted power, no unnecessary glare.