Nitecore EDC37 stands out as the lightest option for weight, with about a 53% gap from the closest alternative. Nitecore EDC37 stands out as the cheapest option for retail price, with about a 53% gap from the closest alternative. Nitecore TM20K stands out as the highest output option for max lumens, with about a 150% gap from the closest alternative.
Decision Signals
What stands out
Cheapest
Nitecore EDC37 stands out as the cheapest option for retail price, with about a 53% gap from the closest alternative.
Most expensive
Nitecore TM20K stands out as the most expensive option for retail price, with about a 114% gap from the closest alternative.
Lightest
Nitecore EDC37 stands out as the lightest option for weight, with about a 53% gap from the closest alternative.
Heaviest
Nitecore TM20K stands out as the heaviest option for weight, with about a 112% gap from the closest alternative.
Lowest output
Nitecore EDC37 stands out as the lowest output option for max lumens, with about a 60% gap from the closest alternative.
Highest output
Nitecore TM20K stands out as the highest output option for max lumens, with about a 150% gap from the closest alternative.
Shortest runtime
Nitecore TM20K stands out as the shortest runtime option for max runtime, with about a 93% gap from the closest alternative.
Longest runtime
Nitecore EDC37 stands out as the longest runtime option for max runtime, with about a 1362% 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.
Built-in 2 x 21700 Li-ion rechargeable batteries, 9600mAh total capacity
Charging type
USB-C fast charging (18W)
USB-C with Quick Charge support
Rechargeable
Yes
Yes
IP rating
IP54
IP68
Impact resistance
2 m (7 ft)Highest
1 m (3 ft)Lowest
Material
Stainless steel with PVD coating and carbon fiber reinforced polymer frame with aluminum heat dissipation plate
Aero grade aluminum alloy with HA III military grade hard-anodized finish
Use case profile
Best for
▣Tactical EDC▣Security patrol▣Law enforcement▣Search and rescue▣Personal defense▣Emergency lighting
▣Tactical activities▣Search and rescue▣Outdoor activities▣Industrial use▣Self-preservation and active threat mitigation
Common praise
✓High maximum brightness for compact size✓Useful OLED real-time display with mode, brightness, battery and runtime info✓Physical lockout switch prevents accidental activation✓Good output regulation with temperature management✓Solid build quality with tactical design✓Fast USB-C charging with large built-in battery✓Multiple usable modes including flood and spotlight
✓Extremely high brightness output✓Solid and durable CNC machined unibody construction✓Versatile dual switch with tactical features✓Stable output with advanced thermal regulation✓Good waterproofing and impact resistance
Common complaints
⚠IP54 rating lower than typical IP67/IP68 for full waterproof use⚠Battery is not user replaceable⚠Momentary high output duration limited by thermal regulation
⚠Relatively heavy and bulky for everyday carry⚠Burst mode duration is short