Fenix PD36R ACE stands out as the lightest option for weight, with about a 49% gap from the closest alternative. Fenix TK28R stands out as the highest output option for max lumens, with about a 117% gap from the closest alternative. Fenix TK28R stands out as the longest runtime option for max runtime, with about a 61% gap from the closest alternative.
Decision Signals
What stands out
Lightest
Fenix PD36R ACE stands out as the lightest option for weight, with about a 49% gap from the closest alternative.
Heaviest
Fenix TK28R stands out as the heaviest option for weight, with about a 97% gap from the closest alternative.
Lowest output
Fenix PD36R ACE stands out as the lowest output option for max lumens, with about a 54% gap from the closest alternative.
Highest output
Fenix TK28R stands out as the highest output option for max lumens, with about a 117% gap from the closest alternative.
Shortest runtime
Fenix PD36R ACE stands out as the shortest runtime option for max runtime, with about a 38% gap from the closest alternative.
Longest runtime
Fenix TK28R stands out as the longest runtime option for max runtime, with about a 61% gap from the closest alternative.
Shortest
Fenix PD36R ACE stands out as the shortest option for length, with about a 1% gap from the closest alternative.
Longest
Fenix TK28R stands out as the longest option for length, with about a 1% 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.
✓High maximum output and long beam distance✓Durable aerospace-grade build and IP68 waterproof rating✓Intuitive dual tail and toggle switch interface✓Long runtime up to 102 hours in Eco mode✓Fast USB Type-C charging in about 1.5 hours
Common complaints
⚠No specific complaints noted in source, but weight may be considered heavy for keychain use
⚠Potential downshift in brightness due to overheat protection⚠LEDs not user-replaceable⚠Requires specific battery types for proper operation