Core Overview
- Recreational and technical scuba diving
- Underwater photography and videography (high-output illumination)
- Commercial diving and hull inspection
- Search-and-rescue underwater operations
- Marine biology research and specimen collection
- Deep cave and wreck diving exploration
Key Product Advantages
- IP68-Rated Deep-Water Performance at 100 Meters
The DL01-S is rigorously tested and certified to IP68 waterproof standards, withstanding sustained submersion at depths of 100 meters (328 feet). Double O-ring seals at every junction point, precision CNC-threaded end caps, and a reinforced lens assembly ensure zero water ingress under sustained hydrostatic pressure. The magnetic tail switch eliminates mechanical penetration points — a critical engineering advantage over traditional push-button designs that degrade under pressure cycling.
- High-Output 2100LM P50 LED with Extended 280M Range
The P50 LED core generates 2100 lumens of pure white light at 7000K color temperature, cutting through turbid water with an impressive 280-meter beam range. Drawing up to 20W of input power (16.09W at the LED), the DL01-S produces significantly more output than the standard DL01 — providing the extra illumination headroom needed for deep-water environments where ambient light is absent, for photographing fast-moving marine life, or for signaling over long distances in open water. The high-transparency optical lens is engineered with a wide-angle beam profile that provides both a concentrated hotspot and sufficient spill for peripheral awareness.
- Glove-Friendly Magnetic Switch with Advanced Mode Memory
The magnetic tail switch requires zero mechanical travel — a simple tap or press cycles through modes even with 5mm or 7mm neoprene gloves. Five fully independent modes (High → Medium → Low → Strobe → SOS) are accessible in sequence, with intelligent mode memory that recalls your last-used setting. Two quick-off features enhance dive safety: after 15 seconds of continuous use in any mode, a single press returns directly to off; from any mode, a long-press (2 seconds) instantly shuts off the light. This eliminates the need to cycle through all settings in an emergency where immediate darkness is required.
- Aircraft-Grade Aluminum Construction with Advanced Circuit Protection
Machined from T6061 aluminum alloy billet and treated with a military-grade Type III hard anodized finish, the DL01-S withstands the corrosive effects of saltwater, high humidity, and repeated pressure cycles. The integrated circuit protection suite includes reverse polarity protection (prevents damage from incorrectly inserted batteries), low-voltage cutoff (prevents deep discharge damage to lithium cells), low-voltage warning (visual indicator before cutoff), and over-discharge protection — features typically found only on considerably more expensive professional dive lights.
- Four-Stage Battery Status Indicator for Underwater Power Management
A four-stage LED indicator ring provides real-time battery state: blue (80–100%), green (40–80%), red (10–40%), and off (below 10%). This eliminates the guesswork of underwater battery management — divers can assess remaining runtime with a single glance and plan their ascent accordingly. Combined with the DL01-S’s approximately 3-hour high-mode runtime on the included 4000mAh 21700 cell, this indicator system provides the confidence needed for multi-dive excursions and extended bottom times.
Specifications ofDL01-S Tactical Flashlight
| Parameter | Specification |
|---|---|
| Model | DL01-S |
| Product Type | Professional Diving Flashlight |
| LED Type | P50 |
| Rated Power | 20W (MAX) |
| Lumens | 2100LM |
| Beam Distance | 280m |
| Color Temperature | 7000K (White Light) |
| Rated Voltage | DC 3.7V |
| Battery | 1× 21700 / 4000mAh (Rechargeable, User-Replaceable, 3C Certified) |
| Runtime | Approx. 3 Hours (High Mode) |
| Maximum Diving Depth | 100 Meters (328 Feet) |
| Waterproof Rating | IP68 |
| Drop Resistance | 1 Meter |
| Light Modes | High → Medium → Low → Strobe → SOS |
| Switch Type | Magnetic Tail Switch (Glove-Friendly) |
| Dimensions | 43 × 30 × 156mm |
| Net Weight (Flashlight Only) | 195g |
| Material | T6061 Aluminum Alloy (Hard Anodized) |
| Color | Black |
| Beam Type | Fixed Focus (Wide-Angle Optical Lens) |
| Mode Memory | Yes (Recalls Last Mode After 15s Continuous Use) |
| Battery Indicator | 4-Stage LED (Blue / Green / Red / Off) |
| Circuit Protection | Reverse Polarity, Low-Voltage Cutoff, Low-Voltage Alert, Over-Discharge Protection, Power-Saving Program |
| Barcode | 6977502518224 |
Power and Current Data:
| Mode | Input Voltage | Input Current | Input Power |
|---|---|---|---|
| High | DC 3.7V | 4.35A | 16.09W |
| Medium | DC 3.7V | 0.46A | 1.70W |
| Low | DC 3.7V | 0.28A | 1.03W |
| Strobe | DC 3.7V | 0.19–0.27A | 0.70–0.99W |
| SOS | DC 3.7V | 0.01–0.27A | 0.037–1.66W |
Standard Package Contents:
- DL01-S Diving Flashlight ×1
- 21700 4000mAh Rechargeable Battery (3C Certified, SUPERFIRE Branded) ×1
- AC16 Battery Charger (SUPERFIRE Branded, Extended) ×1
- Diving Wrist Lanyard (Black) ×1
- Spare O-Ring Set (Black, 2pcs) ×1 set
- Spare Silicone Ring Set (Orange & Fluorescent Green) ×1 set
- Silicone Ring PE Storage Bag ×1
- Blister Tray (V2.0) ×1
- Retail Display Hanging Box (SUPERFIRE Branded) ×1
- Sticker ×1
- Multi-Language User Manual ×1
- Anti-Counterfeit Security Label ×1
Details of SUPERFIRE DL01-S Tactical Flashlight
Video
FAQ
How does the DL01-S differ from the DL01, and which should I choose?
The DL01-S delivers 2100 lumens with a 280-meter beam range using a 4000mAh 21700 cell, compared to the DL01’s 1400 lumens, 270-meter range, and 3000mAh battery. The DL01-S represents approximately a 50% output increase for environments requiring maximum illumination — deep wrecks, low-visibility coastal waters, cave systems, and professional photography where additional light enables faster shutter speeds and lower ISO. For recreational diving in clear tropical water under 30 meters, the DL01 provides ample illumination at a more accessible price point. Distributors are encouraged to stock both models to serve different diver segments.
What is the actual burn time at each brightness level?
In controlled laboratory testing using the included 21700/4000mAh cell at 25°C ambient temperature: High mode (2100LM) delivers approximately 3 hours of regulated output before stepping down; Medium mode provides approximately 8–10 hours; Low mode extends to 20+ hours. Strobe and SOS modes, due to their intermittent activation patterns, can operate for significantly longer. Actual runtime varies with water temperature (cold water accelerates battery discharge), battery age, and charge cycle count.
What circuit protections does the DL01-S include?
The DL01-S features a comprehensive protection suite: reverse polarity protection prevents damage if the battery is inserted backwards; low-voltage cutoff automatically disconnects the battery before deep discharge can cause permanent cell damage; low-voltage warning provides a visual alert (red indicator) before cutoff occurs; over-discharge protection prevents the battery from dropping below safe minimum voltage during extended storage; and a power-saving program optimizes driver efficiency at lower output levels. These protections extend both battery and flashlight service life.
Can the DL01-S use 18650 batteries with an adapter?
The DL01-S is designed for 21700 lithium-ion cells. While the body tube diameter accommodates 18650 cells with a sleeve adapter, we recommend using the native 21700 format for optimal performance — the higher discharge current required for the 2100-lumen high mode (4.35A) may exceed the continuous discharge rating of some 18650 cells. The higher capacity of the 21700 format (4000mAh vs. typical 3000–3500mAh for 18650) also provides the rated 3-hour high-mode runtime. If 18650 compatibility is required, discuss this with our OEM team for custom tube machining options.
What maintenance is required to ensure long-term waterproof performance?
After each saltwater dive, rinse the DL01-S thoroughly in fresh water with the tail cap fully tightened. Periodically (every 10–15 dives or before extended storage): remove the tail cap, carefully extract the O-rings, clean the O-ring grooves with a soft brush and fresh water, inspect O-rings for cuts, flattening, or cracking, apply a thin layer of silicone grease to each O-ring before reinstallation, and lightly lubricate the tail cap threads. Store the flashlight with the tail cap slightly loosened to relieve O-ring compression during long-term storage. Replacement O-ring and silicone ring kits are available from SUPERFIRE and authorized distributors.
Customization & OEM Services
SUPERFIRE provides full-spectrum OEM/ODM services for the DL01-S Diving Flashlight, supporting dive equipment brands, marine safety distributors, government procurement, and private-label operations worldwide.
- Brand Customization
- Laser Engraving: High-precision laser marking of your brand logo, model designation, and regulatory markings directly onto the aluminum body — permanent, non-fading, and resistant to saltwater corrosion
- Color Anodizing: Custom hard-anodized body colors beyond standard black (minimum order quantities apply); popular options include safety orange, navy blue, and gunmetal gray
- Lanyard Branding: Custom-printed silicone wrist lanyards with your logo and contact information
- Charger Branding: Custom-branded AC16 battery chargers and accessories with your company identity
- Packaging Customization
- Retail Box Design: Full creative service for packaging artwork, including die-cut window boxes, rigid magnetic-closure boxes, or eco-friendly kraft packaging
- Blister Tray Customization: Custom-formed blister trays for secure product presentation and retail display
- Multi-Language Documentation: User manuals, quick-start guides, and warranty cards translated and designed in your required languages with your branding
- Anti-Counterfeiting: Custom holographic security labels, QR-code verification systems, and unique serial numbering for brand protection
- Product Customization
- LED Configuration: Alternative LED options for different color temperatures (warm white 4000K–5000K for photography; cool white 6500K+ for maximum penetration)
- Beam Profile Tuning: Custom reflector and lens combinations for tighter spot (long-range signaling) or wider flood (close-up photography/filming)
- Mode Programming: Fully customizable mode sequences, output levels, and special modes (e.g., dive timer flash, battery-level blink code, lockout mode)
- Battery Configuration: Support for alternative cell formats (18650, 26650) with custom body tube machining
- Accessory Ecosystem: Custom-designed mounting clamps for underwater camera rigs, Goodman handles, helmet mounts for commercial diving, and tether systems
- Quality & Compliance
- IP68 certification documentation with depth rating validation
- CE, FCC, RoHS compliance for all standard and custom configurations
- Material traceability certificates for aluminum alloy and anodizing specifications
- Salt spray corrosion testing reports (ASTM B117 standard) available upon request
- Pre-shipment inspection reports with batch-level QC data
- Order & Logistics
- Minimum Order Quantities: Flexible and discussed on a per-order basis depending on product configuration and customization scope
- Sample Lead Time: Approximately 2–3 weeks for standard samples; custom pre-production samples confirmed upon order
- Production Lead Time: Discussed and confirmed upon sample approval — timelines scaled to order volume and customization complexity
- Shipping: FOB Shenzhen / EXW available; ocean freight consolidation and air freight expedited options
- Payment Terms: Discussed on order confirmation; flexible terms available for established long-term partners
- After-Sales Support: Manufacturer warranty against defects in materials and workmanship; spare parts (O-rings, switches, lenses, silicone rings) available for the product’s supported lifecycle
For OEM inquiries, cycling shop distributor partnerships, or volume pricing,
contact us at service@superfire.com or via WhatsApp at +86 199 2887 7060.
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Sth Floor, Building No.10, Yuanyang Xintiandi Shuianhuayuan, No. 16 Shenglong Road. Shengping Community, Longcheng Street, LongganProvince, China