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Comparison Console

Fenix LD20 vs Olight Diffuse

EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.

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Command Brief

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Fenix LD20 stands out as the lightest option for weight, with about a 3% gap from the closest alternative. Olight Diffuse stands out as the highest output option for max lumens, with about a 289% gap from the closest alternative. Olight Diffuse stands out as the longest runtime option for max runtime, with about a 8900% gap from the closest alternative.

Decision Signals

What stands out

Lightest

Fenix LD20 stands out as the lightest option for weight, with about a 3% gap from the closest alternative.

Heaviest

Olight Diffuse stands out as the heaviest option for weight, with about a 3% gap from the closest alternative.

Lowest output

Fenix LD20 stands out as the lowest output option for max lumens, with about a 74% gap from the closest alternative.

Highest output

Olight Diffuse stands out as the highest output option for max lumens, with about a 289% gap from the closest alternative.

Shortest runtime

Fenix LD20 stands out as the shortest runtime option for max runtime, with about a 99% gap from the closest alternative.

Longest runtime

Olight Diffuse stands out as the longest runtime option for max runtime, with about a 8900% gap from the closest alternative.

Shortest

Olight Diffuse stands out as the shortest option for length, with about a 45% gap from the closest alternative.

Longest

Fenix LD20 stands out as the longest option for length, with about a 83% gap from the closest alternative.

Specification Profile

Relative dimensions at a glance

Each axis is normalized against the largest raw value among the products in this comparison. Farther outward means a larger value, not necessarily a better result. Axes with an unverified value are omitted.

Fenix LD20 — Beam distance: 140 m (459 ft)Fenix LD20 — Weight: 56 g (1.98 oz)Fenix LD20 — Length: 159 mm (6.26 in)Fenix LD20 — Max lumens: 180 lmFenix LD20 — Max runtime: 120 minOlight Diffuse — Beam distance: 80 m (262 ft)Olight Diffuse — Weight: 57.5 g (2.03 oz)Olight Diffuse — Length: 87 mm (3.43 in)Olight Diffuse — Max lumens: 700 lmOlight Diffuse — Max runtime: 10800 minBeam distanceWeightLengthMax lumensMax runtime
Price & carry
Retail price
Unknown
US$32.99
Weight
56 g (1.98 oz)Lightest
57.5 g (2.03 oz)Heaviest
Length
159 mm (6.26 in)Longest
87 mm (3.43 in)Shortest
Output
Max lumens
180 lmLowest output
700 lmHighest output
Max candela
Unknown
1700 cd
Beam distance
140 m (459 ft)Highest
80 m (262 ft)Lowest
Max runtime
120 minShortest runtime
10800 minLongest runtime
Power & durability
Battery type
2 x AA (Alkaline, Ni-MH, Lithium)
14500 lithium-ion (also compatible with AA primary or NiMH)
Charging type
Unknown
USB-C charging via battery
Rechargeable
No
Yes
IP rating
IPX-8
IPX8
Impact resistance
1.5 m (5 ft)
Unknown
Material
T6 aircraft-grade aluminum
Unknown
Use case profile
Best for
General useEDCOutdoor useSearch and rescueHikingHunting
EDC useTool kit or toolbox lightUsers needing anti-roll shapeUsers wanting waterproof light
Common praise
Compact and easy to carryWide range of brightness levelsDigitally regulated brightnessUses common AA batteriesDurable aircraft-grade aluminum bodyWaterproof (IPX-8)
Good waterproof rating (IPX8)Anti-roll pentagon shapeGood output and runtimeConvenient battery with onboard USB-C chargingNice e-switch with indicator and lockout
Common complaints
Difficult to operate with glovesAnti-roll design is not perfect9 lumens low mode is too bright for some users
No knurling makes grip less secureTailcap is small and fiddly to unscrewNo built-in charging in flashlight (battery charges externally)Limited documentation on AA battery mode