The Ferei W156II Rechargeable LED Diving Light is a powerful and meticulously engineered flashlight designed specifically for serious underwater exploration. Tailored for demanding divers who seek reliability, performance, and ease of use, the W156II sets itself apart with its advanced lighting technology, rugged build, and deep-sea durability. Whether you're navigating through complex underwater caves, inspecting wrecks, or gliding near coral formations at great depths, the W156II ensures that your path remains brilliantly illuminated.

At the core of the W156II lies a trio of high-performance CREE XM-L LEDs, known for their efficiency, brightness, and longevity. These emitters produce a maximum light output of up to 2,580 lumens, creating a bright and even beam capable of reaching distances up to 120 meters underwater. The beam is carefully shaped through a specially designed reflector optimized for diving, delivering a wide and consistent light spread that enhances visibility without the hard edges or tunnel effects found in lower-quality dive lights. This broad beam is particularly beneficial for illuminating tight spaces like underwater caves or densely structured reef environments where wide-angle coverage is essential.

Durability is a hallmark of the Ferei brand, and the W156II lives up to this reputation in every respect. The flashlight’s body is machined from aircraft-grade aluminum, which is hard-anodized for superior corrosion and scratch resistance. This finish not only provides added strength but also offers long-term reliability in both fresh and saltwater environments. With a robust IPX8 rating, the light is fully submersible up to 150 meters — a depth that satisfies the demands of professional divers and technical specialists. The lens is made from toughened ultra-clear optical glass, treated to resist pressure, abrasion, and impact. It ensures optimal light transmission while withstanding the extreme pressures encountered at depth.

One of the standout features of the W156II is its magnetic rotary switch — a design Ferei has refined over the years for unparalleled underwater performance. Unlike mechanical switches that may corrode, jam, or fail under pressure, this switch operates magnetically without physical connection to the internal electronics. Divers can rotate the switch left or right to select between various brightness levels or toggle the light on and off. The simplicity of the design, combined with its reliability and tactile feedback, makes it especially well-suited for underwater use, even while wearing gloves or maneuvering in challenging conditions.

The W156II includes three main brightness modes along with a flash function. This versatility allows divers to adjust illumination depending on the environment or task. For instance, maximum brightness is ideal for full visibility in murky waters or large open spaces, while medium or low levels are more suitable for conserving power during less demanding segments of a dive. The flash mode is useful for signaling or emergency situations, ensuring that the diver can draw attention or communicate when necessary.

In terms of power, the W156II runs on two 18650 rechargeable lithium-ion batteries, each rated at 3400mAh. These high-capacity cells offer ample energy reserves to support long underwater sessions without compromising brightness. At maximum output, the light can operate continuously for up to three hours — an impressive runtime for such a high-powered diving light. Thanks to its extended body design, which accommodates both batteries in tandem, the flashlight maintains a well-balanced form that remains easy to handle despite its power. Recharging the battery pack takes approximately five hours using the included AC009B charger, allowing for fast turnaround between dives.

The W156II also incorporates several intelligent features that enhance user safety and prolong the life of the flashlight. A built-in circuit monitors battery status, protecting against over-discharge and reverse polarity. This ensures that the batteries are never drained below safe thresholds and that incorrect installation won’t result in damage to the light. Additionally, the lamp includes a battery warning system: when battery levels fall too low, the light begins blinking intermittently for 20 to 30 minutes before automatically shutting off. This feature gives divers ample time to complete their dive safely or switch to a backup.

An especially noteworthy feature is the W156II’s ability to offer lighting in both white and red hues. Divers can switch between white light — available in max and medium levels — for general visibility and red light — also in two intensities — for tasks requiring less glare or when preserving night vision is essential. The red light can also serve as a non-disruptive signal during group dives or scientific observations of marine life, which is often less reactive to red wavelengths. This dual-color functionality adds a layer of versatility that makes the flashlight suitable for a broader range of use cases beyond recreational diving, such as underwater photography, marine biology, and cave mapping.

Measuring 222mm in length and weighing approximately 278 grams, the W156II strikes an ideal balance between size and capability. It is compact enough to be comfortably mounted to a diving harness, handheld during an entire dive, or attached to a helmet or other underwater gear. Its ergonomic profile ensures it fits well in hand and its weight is manageable even during extended sessions. The flashlight’s design includes anti-roll features and a textured surface for enhanced grip, contributing further to user control and confidence in slippery or high-pressure situations.

Each Ferei W156II unit undergoes rigorous pressure and vibration testing before leaving the factory. This ensures that every flashlight meets the highest standards of durability and reliability. With such quality control and robust design, divers can trust that the W156II will perform as promised, dive after dive, without unexpected malfunctions or weak performance.

Included in the full kit are all the essential components to get started right away. The package comes with the W156II diving light, two 3400mAh 18650 lithium batteries, the C28 battery holder, and the AC009B charger. Together, these components form a complete and convenient system that is ready for immediate underwater use.

In conclusion, the Ferei W156II Rechargeable Diving Light is a well-rounded, high-performance tool built to withstand the rigors of professional underwater activity. Its powerful triple-LED system, deep waterproof capability, intelligent circuitry, and rugged aluminum construction make it an ideal choice for divers of all levels — from recreational enthusiasts to technical experts. With its user-friendly magnetic switch, extended runtime, color versatility, and robust build, the W156II provides everything a diver needs for clear, reliable illumination in even the most challenging conditions. Whether you're navigating deep ocean trenches or inspecting wrecks on a murky seabed, the Ferei W156II ensures that you can dive with clarity and confidence, every time.

FEATURES:

• High-power CREE LED with a lifespan of up to 100,000 hours.
• Surface-coated optical glass lens resists abrasions and scratches, also provides an effective transmittance.
• Body can be hard anodized into several colors, also is better scratch-resistant.
• Using Ferei own-developed & most advanced intelligent circuit control system.
• Magnetic switch can be rotated either left or right, easy for operation.
• Designed with low battery warning system.
• Protected from battery over-discharging and battery wrong polarity placed.
• Utilizes a toughened ultra-clear optical glass lens for high pressure resistance and produces a wide angle beam.
• Lighting options: Red (Max / Med) & White (Max / Med), user can choose the beam color to get an even floodlight.

Specification:

• Brand and model: Ferei W156II
• LED: 3 x CREE XM-L
• Battery: 2 x 18650 Incl. 2 x 3400mAh Ferei batteries
• Light output declared by the manufacturer: 2580 lm
• Range stated by the manufacturer: 120 m
• Manufacturer's stated color temperature: 5000-6800K
• Spotlight: Wide combination
• Indicated operating time at full power: approx. 3 h
• Operating modes: 3 power modes + flash
• Switch: Magnetic rotary switch with no mechanical connection to the inside of the lamp
• Charging time: approx. 5 h
• Material: Hard-anodized aluminum body
• External dimensions: 222 mm x 26.5 x 50 mm
• Weight: 278 g
• Impact resistance:
• IP rating: IPX8
  • Waterproof up to 150 meters

Full Kit includes：
1pc W156II Diving Light,
1pc AC009B charger,
1pc C28 battery holder,
2 pcs 3400mAh 18650 Li-Ion battery,

SHIPPING
The final shipping cost and estimated delivery timeframe will be available to you during checkout. Currently, we offer 3 International shipping methods which are steady and easy to track. Priority worldwide shipping, Premium ( Partial countries) and a faster Express shipping. The estimated times stated below are not guaranteed. An international package could experience delays like postal strikes or severe weather or Cov-19 situation. All shipping ways, PO Box address is not acceptable.

For some flashlights, there's a pure battery inside（phone charging）,If We can not ship your packages via USPS or DHL,we'll ship your package in another way.

Note:
When you place an order for just the batteries, for easy shipping, faster and safe delivery, the batteries are placed in the flashlights.

If you don’t receive your order within the estimated time frame provided below and suspect that it might be lost in transit, please contact Flashlightgo Support ( support@flashlightgo.com ) and we can look into the order with the courier. Lost-in-transit requests must be submitted to Flashlightgo Support within 3 months of the date of shipping or before the courier archives the tracking information.

Option 1.
Express by DHL/UPS/Fedex/Aramax/SF etc ( there may be tax need to pay in this way),
The estimated time of delivery is usually 3-7 work days depending on the country. Includes detailed tracking and confirmation of delivery.

Option 2.
Premium ( 6-10days, All tax and Duty Paid),
All tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.

Option 3.
Priority shipping(1-2 Weeks, average 10 days)
If we marked it is with all tax and duty paid, all tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.

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To ensure that you get the desirable product, we allow a seven-day product return period. Any product return application outside this period will not be entertained.
All returned product must be unused and the original package should be kept.

Return：
We do not offer return for personal products like socks and hats or food, magazine and fragile or dangerous products The original receipt must be available for application of return.

Discount products：
No product return for discount products

Gifts products：
If the item is marked as a gift when purchased and shipped directly to you, it cannot be exchanged , refunded or warranty.

Exchange：
We only replace items if they are defective or damaged.
Exchange service are offered only to wrong deliveries or product damage not caused by client. If needed, please email to info@flashlightgo.com.

Warranty
How long is the warranty period?
Flashlightgo warrants to the original purchaser that the Product(s) shall be free of any defect in material or workmanship for a period of one year for labor and one year for parts from the date of the original order except the items listed below:
Chargers,Batteries and Other Accessories: 3 months warranty

Should the Product(s) supplied by Flashlightgo prove defective because of improper workmanship or material as reasonably determined by us, Flashlightgo agrees, at its option, to either repair or replace the Product free of charge, excluding any shipping or handling charges.

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