LED Flashlight L21B, SST40, for 21700 Battery
LED Flashlight L21B, SST40, for 21700 Battery
Couldn't load pickup availability
A compact aluminum flashlight built around the SST40 LED. Runs on a single 21700 battery with mode memory and a tailstand, in your choice of 5000K or 6500K colour temperature and two driver options.
Choose Your Setup
Pick a colour temperature (5000K or 6500K), a driver (4 modes or 12 configurable mode groups) and whether you want it with or without a 21700 battery. The with-battery option also includes a USB charger.
01Why You’ll Like It
SST40 LED with glass lens
An SST40 LED sits behind a smooth reflector and an AR-coated glass lens, with a listed output of 2300 lumens.
Two driver options
The 4-mode driver steps through 0.3%, 3%, 30% and 100% output. The 12-group driver lets you choose from 12 preset mode groups by tapping the switch.
Mode memory and battery check
The light returns to your last mode, and a flash-count battery check shows the remaining charge level.
Built-in protections
Low voltage warning and reverse polarity protection are listed by the supplier.
Tailstand and aluminum body
A flat tail lets the light stand upright for area lighting, and the aluminum alloy body keeps it compact at 212 g.
02Specifications
| Model | L21B |
| Brand (supplier-listed) | Convoy MK |
| LED | SST40 |
| Output (supplier-listed) | 2300 lumens |
| Colour temperature | 5000K or 6500K |
| Body | Aluminum alloy |
| Lens and reflector | AR-coated glass lens, smooth reflector |
| Battery required | 1 × unprotected 21700 lithium battery |
| Dimensions | 170.5 mm length, 62.6 mm head, 26.1 mm body |
| Net weight | 212 g (gross 247 g) |
| Runtime (supplier-listed) | 2 to 5 hours, depending on mode |
03Package Contents
04Battery Safety & Care
This light needs an unprotected 21700 lithium battery. Use only a correctly sized cell, match the polarity marked on the light, and charge it with a suitable lithium charger on a non-flammable surface without leaving it unattended. Stop using any battery that is damaged, swollen or unusually hot, and carry spare cells in a case, not loose in a pocket.
The supplier lists the light as waterproof but gives no IP rating, so avoid submerging it and dry it after wet use. Never shine the beam at anyone’s eyes.
Figures are supplier-listed and have not been independently tested by ARWE.
One cell, one switch, light when you need it.
Arwe · Wilderness Series
Explore Camping Lights, Solar Panels & PowerDispatch, Delivery & Our Guarantee
Plan for your next day outside. For Canada and the United States, allow approximately 12–24 business days from ordering to delivery: usually 5–10 business days for processing, then an estimated 7–14 business days after dispatch. Weekends and public holidays are excluded.
Clear updates along the way. Tracking is emailed when available. Some items ship directly from a fulfilment partner and may arrive separately. Delivery dates are estimates; carrier, customs, or processing delays can extend the timeline. Please allow extra time before a trip.
Know your total. Shipping charges and eligibility are shown at checkout. Import duties or fees may apply unless checkout states they are included.
Our promise: a clear next step. If an item arrives damaged or incorrect, or a parcel is overdue, email arwesupport@gmail.com with your order number. We'll review the issue and explain the next step. Returns and refunds follow our published policy.
FROM THE ARWE COMMUNITY
Reviews & field notes.
Need help with an order? Get in touch
