Comparison Console
ThruNite BSS V4 vs ThruNite TT20 The Outsider
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
ThruNite BSS V4 stands out as the lightest option for weight, with about a 46% gap from the closest alternative. ThruNite BSS V4 stands out as the cheapest option for retail price. ThruNite TT20 The Outsider stands out as the highest output option for max lumens.
Decision Signals
What stands out
ThruNite BSS V4 stands out as the cheapest option for retail price.
ThruNite TT20 The Outsider stands out as the most expensive option for retail price.
ThruNite BSS V4 stands out as the lightest option for weight, with about a 46% gap from the closest alternative.
ThruNite TT20 The Outsider stands out as the heaviest option for weight, with about a 85% gap from the closest alternative.
ThruNite BSS V4 stands out as the lowest output option for max lumens.
ThruNite TT20 The Outsider stands out as the highest output option for max lumens.
ThruNite BSS V4 stands out as the shortest runtime option for max runtime, with about a 94% gap from the closest alternative.
ThruNite TT20 The Outsider stands out as the longest runtime option for max runtime, with about a 1527% 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.
Price & carry
Retail price
US$59.95Cheapest
US$60Most expensive
Weight
98 g (3.46 oz)Lightest
181 g (6.38 oz)Heaviest
Length
146.5 mm (5.77 in)Longest
136 mm (5.35 in)Shortest
Output
Max lumens
2523 lmLowest output
2526 lmHighest output
Max candela
16887 cdLowest candela
26483 cdHighest candela
Beam distance
260 m (853 ft)Lowest
305 m (1001 ft)Highest
Max runtime
8850 minShortest runtime
144000 minLongest runtime
Power & durability
Battery type
1x 18650
21700 lithium-ion customized proprietary battery
Charging type
Micro-USB
USB-C charging
Rechargeable
Yes
Yes
IP rating
IPX8
IPX8
Impact resistance
Unknown
1.5 m (5 ft)
Material
Aluminum
Military-grade aluminum AL 6061-T6
Use case profile
Best for
Tactical useEDCWeapon mountingOutdoor activities
HuntingEmergenciesOutdoor activitiesNight patrolSecurity patrolRoadside emergenciesTactical use
Common praise
High maximum output with 2523 lumensCompact size and lightweight for easy carryIncludes a comprehensive accessory kit with battery and mounting optionsIPX8 waterproof ratingSmooth reflector and versatile strike bezelGood thermal management and runtime
High maximum output (up to 2526 lumens)Long beam throw (305 meters)Very long firefly mode runtime (up to 100 days at 0.5 lumens)Dual switch interface enabling tactical and daily useUSB-C direct recharge with battery level indicatorDurable IPX8 waterproof and 1.5 meter impact resistanceIncluded proprietary 5000mAh 21700 battery and accessories (holster, lanyard, spare o-rings)Well-designed clip and pocket carry optionsSolid build quality with smooth reflector and good beam pattern
Common complaints
Uses micro-USB charging rather than the more modern USB-CTailcap design can make battery swaps somewhat inconvenientFriction-fit pocket clip only allows tail-end carryNo mounting option for the remote switch included
Proprietary battery only compatible with this lightSomewhat heavy and large for pocket carryClip can rotate and may scar the bodySmall fixed step brightness ramp instead of completely smooth rampCharging port cover may sometimes open unintentionally
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