Skip to product information
Nitecore EDC31: 3,500 Lumens with 9-Core UHi MAX LED and Rapid Lock Control
The Nitecore EDC31 condenses extreme output into a highly pocketable footprint, utilizing the proprietary 9-core NiteLab UHi 20 MAX LED to deliver up to 3,500 lumens of broad illumination. Optimized entirely for everyday carry and readiness, it features a dual-stage electronic tail switch paired with a dedicated sliding lockout switch. This combination allows you to instantly deploy a high-candela spotlight or an expansive wall of light without navigating complex click menus.
For EDC & Everyday Utility
- Ultra-Compact Round Profile: Measuring just 113.2mm (4.46 inches) in length and weighing a lightweight 100 grams (3.53 ounces) with the clip attached, it rides comfortably in any front pocket without causing pocket sag.
- Deep-Carry Steel Pocket Clip: The redesigned, low-profile pocket clip carries the light deep inside your pocket while integrated anti-roll flats on the head prevent the chassis from rolling away on flat work surfaces.
- Integrated High-Capacity Power Core: Powered by a built-in 3,800mAh 18650 lithium-ion battery that recharges via a sealed USB-C port in under 2 hours, yielding up to 57 hours of runtime on the 5-lumen Ultralow setting.
For First Responders
- Lumin Shield Flood: A firm, deep press-and-hold of the tail switch instantly unleashes a 3,500-lumen wall of light. This acts as a visual deterrent by casting a massive flood pattern
- Physical Rapid Lock Slide Switch: A dedicated mechanical slide switch next to the tail switch allows for instantaneous Full Lockout or Half Lockout configurations, preventing accidental activation in your gear bag while maintaining access to emergency bursts.
- Rugged, Impact-Resistant Chassis: Constructed from aerospace-grade aluminum alloy finished with an HA III military-grade hard-anodized coating, certified to withstand severe 2-meter (6.5-foot) drops.
For Outdoorsmen & Search & Rescue
- Search Spotlight Mode: A light half-press and hold of the rear switch isolates the primary central core of the UHi LED, focusing 35,630 cd of intensity into a tight, long-range beam throwing up to 380 meters (415 yards) to locate distant objects and trail markers.
- Flicker-Free Constant Current Regulation: The highly efficient internal driver circuit maintains a stable, continuous current to provide clean, flicker-free output on all continuous utility levels, reducing visual fatigue during long outdoor treks.
- IP68 Submersible Build: Fully sealed against dust, sand, and fine grit, boasting a waterproof depth rating down to 2 meters (6.5 feet) for dependable operations during severe downpours or sudden river crossings.
FLASHLIGHT MODES
Runtime & Output Specification
| Mode | Lumen Output | Runtime | Beam Distance | Beam Intensity |
|---|---|---|---|---|
| LUMIN SHIELD (Floodlight) | 3,500 lm | Unspecified - Less than 10s | 330 m / 360.9 yards | 28,800 cd |
| Search (Spotlight) | 1,500 lm | Unspecified - Less than 10s | 380 m / 415.6 yards | 35,630 cd |
| High (Hybrid Beam) | 1,100 lm | 4h | 200 m / 218.7 yards | 10,098 cd |
| Mid (Spotlight) | 300 lm | 5h | 173 m / 189.2 yards | 7,489 cd |
| Low (Spotlight) | 70 lm | 24h | 85 m / 93 yards | 1,826 cd |
| Ultralow (Spotlight) | 5 lm | 2d 9h | 20 m / 21.9 yards | 109 cd |
TECHNICAL SPECIFICATIONS
Performance & Optics
| Peak Intensity | 35630 cd |
| Emitter Type | 9-core NiteLab UHi 20 MAX LED |
| Color Temp / Profile | 6000K Cool White |
| CRI Rating | Max Brightness (~70) |
| Beam Pattern | Variable (Spot, Flood or Hybrid) |
| Moonlight Mode | No |
Power & Electronics
| Battery Size | Built-In Battery (Non-removable) |
| Included Battery Capacity | 3800 mAh |
| Battery Protection | Protected |
| Standard Battery or Proprietary Battery | Proprietary |
| Charging Method | USB-C (On-Flashlight Body) |
| Driver Type | Buck Driver (Step-Down) |
Physical Interface & Build
| Impact Resistance | 2m (~6.5 ft) |
| Water/Dustproof Rating | IP68 (Dustproof and Submersible up to 2m for 30 min.) |
| Switch Location | Tail Switch |
| Switch Type | Two-stage Electronic (E-Switch) |
| Lockout Mode | Yes |
| Pocket Clip | Deep-Carry Clip |
| Bezel Style | Crenellated w/o Glass Breaking Beads |
| Length | 113.2 mm / 4.46 in |
| Head Diameter | 23 mm / 0.91 in |
| Tube Diameter | 22.6 mm / 0.89 in |
| Weight (with battery) | 100 g / 3.53 oz |