The Convoy L21B is a customizable 21700 flashlight designed for users who want a focused, long-range beam with the flexibility to choose their preferred LED, color temperature, and driver configuration.

Whether you're looking for a compact long-range thrower, a warmer beam for outdoor use, or a specialized light color, the L21B offers a wide range of configurations to suit different lighting preferences.

Why Choose the Convoy L21B?

Customizable LED Options

Choose from a broad selection of LED emitters, including SFT40, SBT90.2, SST40, XHP70.3 HI, Osram LED options, and more. Each emitter offers different characteristics in beam intensity, output, efficiency, or color rendering.

Long-Range Reflector Design

The L21B uses a reflector-based optical design suited to focused illumination. Depending on the selected LED, it can produce a concentrated hotspot for long-distance visibility, with varying levels of surrounding spill.

Multiple Color Temperatures and Light Colors

Select from available cool white, neutral white, and warm white options, as well as specialized red, green, blue, and infrared configurations.

Available choices depend on the selected LED. Not every LED supports every color temperature or light color.

Driver and Mode Choices

Different configurations offer different driver types, output currents, and mode groups. Depending on the LED, options may include 4-mode, 12-group, or other driver configurations.

Choose the combination that best suits your preferred output and operating style.

21700 Battery Platform

The Convoy L21B is designed to operate with a compatible rechargeable 21700 lithium-ion battery, offering a practical power platform for high-output flashlight configurations.

Durable Outdoor Design

With its aluminum-alloy body and reflector-based head design, the L21B is suitable for outdoor exploration, long-range observation, and enthusiast flashlight collections.

How to Choose Your Configuration

Step 1 – Select LED Type

Choose your preferred emitter based on the type of beam and performance characteristics you want.

• SFT40 and Osram options: Worth considering when a focused, long-range beam is the priority.

• SBT90.2: A high-output emitter option for enthusiasts seeking powerful long-range illumination.

• XHP70.3 HI: An alternative for users interested in a balance of output and beam coverage.

• Specialized color LEDs: Available for applications requiring red, green, blue, or other non-white light.

Step 2 – Select Color Temperature

Choose your preferred white-light color temperature or specialized light color. The available combinations depend on the LED.

Step 3 – Select Mode or Driver

Choose from the available driver and mode configurations. Driver current, brightness levels, and operating behavior vary by configuration.

Specifications

Important Notes

• Battery is not included. The Convoy L21B requires one unprotected flat-top 21700 Li-ion battery (3.6V/3.7V nominal), sold separately.

  Protected or button-top 21700 batteries may not fit due to their additional length. Please verify battery dimensions and compatibility before purchasing.

• The flashlight is supplied in the selected LED, color temperature, and driver configuration.

• Brightness, beam distance, runtime, and operating modes vary significantly between configurations.

• Certain LED types are intended for specialized applications and may not produce ordinary white light.

• Please check your selected configuration before ordering.

Find Your Ideal Convoy L21B

From focused long-range white-light configurations to specialized emitter and driver combinations, the Convoy L21B gives flashlight enthusiasts the flexibility to choose the setup that suits their needs.

Select your LED Type, Color Temperature, and Mode or Driver above to build your preferred Convoy L21B flashlight.

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.