The Convoy 4X18A is a powerful multi-cell flashlight designed for users who need high output, substantial battery capacity, and dependable performance for extended outdoor use. Powered by four 18650 Li-ion batteries, it combines a large reflector, multiple LED options, integrated USB-C charging, and an advanced electronic side-switch interface in a robust aluminum body.

With several LED and color-temperature configurations available, the 4X18A can be tailored toward powerful long-range illumination, high-output general-purpose lighting, or a more balanced beam with comfortable light quality.

Multiple LED Options

The Convoy 4X18A is available with multiple LED configurations, giving users the flexibility to choose the beam profile, output characteristics, and color temperature that best suit their needs.

GT FC40

A versatile option for users who value pleasant light quality and a balanced beam. Available in multiple color temperatures for different tint preferences.

SBT90.2

A high-performance LED designed for users looking for a combination of extreme output and impressive beam intensity. Paired with a smooth reflector, this configuration is particularly well suited to long-range outdoor illumination.

LHP73B

A powerful high-output option paired with an orange-peel reflector for a smoother and broader beam profile.

F150R

A high-power configuration paired with a 3V 25A buck driver, offering efficient high-current operation.

LED and color-temperature availability may vary by configuration.

Four 18650 Batteries for Extended Runtime

The 4X18A is powered by four INR or IMR 18650 Li-ion batteries, giving it considerably greater energy capacity than a conventional single-cell flashlight.

The four-cell design provides the energy reserves required for sustained high-output operation while offering useful runtime for extended outdoor activities, nighttime exploration, property inspection, and other demanding applications.

For optimal performance and safety, use four matching high-quality 18650 batteries of the same model, capacity, condition, and charge level.

High-Performance Driver

Different LED configurations are paired with drivers optimized for their electrical requirements.

Depending on the selected version, the 4X18A uses high-current boost, linear, or buck driver technology to deliver strong performance while maintaining efficient operation.

Driver efficiency can reach approximately 90–95%, depending on configuration and operating conditions.

Integrated temperature regulation automatically manages output when the flashlight becomes hot during sustained high-output use.

Integrated USB-C Charging

The built-in USB Type-C charging port allows the batteries to be charged directly inside the flashlight.

With charging support up to 5V/3A, there is no need to remove all four batteries for routine charging, making the large-capacity battery system considerably more convenient for everyday use.

The 4X18A supports USB-C charging but does not provide reverse-charging or power-bank functionality.

Large Reflector for Powerful Beam Performance

A large aluminum reflector allows the 4X18A to take full advantage of its high-performance LED options.

Depending on the selected emitter, the flashlight uses either a smooth reflector for increased beam intensity and long-range performance or an orange-peel reflector for a smoother, more balanced beam.

An AR-coated glass lens helps maximize light transmission while protecting the optical system.

Efficient Thermal Management

High-powered LEDs generate substantial heat, particularly during extended Turbo operation.

The 4X18A uses an integrated flashlight-head structure to efficiently transfer heat away from the LED. A copper DTP MCPCB further improves thermal transfer between the emitter and flashlight body.

Combined with the substantial aluminum construction and electronic temperature regulation, the design helps maintain reliable operation under demanding conditions.

Flexible User Interface

Depending on the selected LED configuration, the 4X18A provides smooth brightness ramping or stepped brightness control.

Supported functions may include:

• Smooth brightness adjustment

• Multiple stepped brightness levels

• Moonlight mode

• Quick-access Turbo

• Strobe

• Tactical mode

• Battery voltage detection

• Mode memory

• Electronic lockout

This flexible interface makes it easy to move between low-level everyday illumination and maximum output when more light is required.

Quick Access to Turbo

On supported configurations, double-clicking the electronic side switch provides immediate access to 100% Turbo.

This makes maximum output quickly available without having to cycle through lower brightness levels first.

Moonlight Mode

For situations where maximum brightness isn't necessary, supported versions provide an ultra-low Moonlight mode.

Low-level illumination is particularly useful for close-range tasks, navigating in darkness, or preserving night vision without producing unnecessary light.

Battery Voltage Detection

Supported configurations allow the user to check approximate battery voltage directly through the flashlight.

A sequence of flashes communicates the current voltage, providing a convenient way to estimate the remaining battery condition without removing the cells.

Built-In Protection

The Convoy 4X18A incorporates several electronic safeguards for demanding high-output operation, including:

• Low-voltage warning

• Low-voltage protection

• Reverse-polarity protection

• Temperature-control protection

• Electronic lockout on supported configurations

These protection systems help safeguard both the flashlight and batteries during operation.

Rugged Aluminum Construction

The 4X18A is built around a durable aluminum-alloy body with an anodized surface treatment.

Its substantial construction provides both physical durability and the thermal mass required for a high-output flashlight.

The electronic side switch provides convenient one-handed operation, while the flat tail design allows the flashlight to tail stand for stationary area illumination.

Key Features

• High-power multi-cell flashlight

• Multiple LED configurations available

• Powered by 4 × 18650 Li-ion batteries

• High-performance driver options

• Up to approximately 90–95% driver efficiency

• Integrated USB Type-C charging

• Up to 5V/3A charging

• Large aluminum reflector

• AR-coated glass lens

• Copper DTP MCPCB

• Efficient integrated thermal design

• Electronic temperature regulation

• Smooth brightness ramping on supported configurations

• Stepped brightness modes

• Quick-access Turbo

• Moonlight mode on supported versions

• Strobe and Tactical modes

• Battery voltage detection

• Mode memory

• Electronic lockout on supported versions

• Low-voltage protection

• Reverse-polarity protection

• Electronic side switch

• Tail-standing capability

Specifications

Brand: Convoy
Model: 4X18A
Material: Aluminum Alloy
Surface Treatment: Anodized
Battery: 4 × 18650 Li-ion Batteries 
Recommended Battery Type: INR / IMR 18650
Charging: USB Type-C
Maximum Charging Input: 5V / 3A
Reverse Charging: No
Driver Efficiency: Up to approx. 90–95%
Switch: Electronic Side Switch
Lens: AR-Coated Glass
Reflector: Aluminum
Low-Voltage Protection: Yes
Reverse-Polarity Protection: Yes
Temperature Control: Yes
Mode Memory: Yes
Tail Stand: Yes

Length: Approx. 153 mm
Head Diameter: Approx. 69 mm
Body Diameter: Approx. 50 mm
Net Weight: Approx. 425 g

Battery Included: No, unless otherwise specified.

High Output. Four-Cell Endurance.

The Convoy 4X18A combines the energy capacity of four 18650 batteries with powerful LED options, a large reflector, integrated USB-C charging, and a robust thermal design.

Different LED configurations allow users to choose between stronger long-range performance, massive overall output, smoother general-purpose illumination, and different color-temperature preferences.

Whether used for outdoor exploration, property inspection, extended nighttime activities, or simply as a powerful general-purpose flashlight, the 4X18A provides the battery capacity and performance needed for serious illumination.

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.

Learn more,Please click on Here.

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.

Learn more,Please click here.