I am only going to use this in strobe blinking for self-defense, Would this work and be effective during day and night?

Yes. The strobe is very strong.

Location of serial number, for my records, please?

The location of the serial number is located near the head of the flashlight.

Is it waterproof or water resistant?

The TM20K has an IP Rating of IP68.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Nitecore TM20K 20,000 Lumen USB-C Rechargeable LED Flashlight with NitecoreSticker

Nitecore TM20K 20,000 Lumen USB-C Rechargeable LED Flashlight with NitecoreSticker

Product ID: 438718708

Details

Color
Black
Light Source Type
LED
Material
Aluminum
Power Source
Battery
Special Feature
Lightweight

🎯317 yards beam distance

💡20,000 lumens max brightness

🔋9600mAh USB-C Quick Charge battery

AR$1173984

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💥 Light up your world like a pro — don’t get left in the dark!

RUGGED READY - Waterproof aluminum body built to withstand harsh environments and extreme temperatures.
COMPACT YET COMMANDING - Under 6 inches with ergonomic flat grip—designed for all-day comfort and zero roll-off.
POWER PACKED ENDURANCE - High-capacity 9600mAh battery with USB-C Quick Charge means less downtime and more action.
PRECISION BEAM CONTROL - Multiple modes including spotlight, floodlight, and strobe for tailored illumination in every scenario.
BLINDING BRIGHTNESS ON DEMAND - Instant turbo mode blasts 20,000 lumens to light up any dark corner or vast outdoor space.

The Nitecore TM20K is a premium, compact LED flashlight delivering an astonishing 20,000 lumens with a beam reach of 317 yards. Powered by a robust 9600mAh lithium-ion battery with USB-C Quick Charge, it offers versatile lighting modes including turbo, strobe, spotlight, and floodlight. Crafted from durable aluminum with a flat ergonomic grip, it’s waterproof and built for extreme conditions, making it the ultimate tool for outdoor enthusiasts, professionals, and safety-conscious users.

Specifications

ASIN	B09TV6RZCV
Additional Features	Lightweight
Battery Description	Lithium-Ion
Battery Life	45 minutes
Battery Type	Lithium Ion
Best Sellers Rank	#262,575 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,331 in Handheld Flashlights
Brand Name	Nitecore
Color	Black
Customer Reviews	4.1 4.1 out of 5 stars (111)
Finish Types	HA III Hard Anodized
Included Components	Battery, Flashlight, Holster, USB-C Charging Cable
Item Dimensions D x W x H	5.73"D x 1.97"W x 1.97"H
Item Dimensions L x W x H	5.73"L x 1.97"W x 1.97"H
Item Weight	14.89 ounces
Light Path Distance	317 yard
Light Source Special Features	Turbo Mode, Strobe Mode, Spotlight, Floodlight, Lock Mode
Light Source Type	LED
Manufacturer	Sysmax
Manufacturer Part Number	TM20K+KEY
Manufacturer Warranty Description	Manufacturer warranty.
Material Type	Aluminum
Model Number	TM20K+KEY
Mounting Type	Handheld
Number of Batteries	1 Lithium Ion batteries required. (included)
Number of Items	1
Number of Light Sources	19
Number of Packs	1
Power Source	Battery Powered
Recommended Uses For Product	outdoor activities, industrial uses, personal safety, search and rescue
Runtime	45 minutes
Set Name	Ambidextrous
Shape	Cylindrical with flat side
Size	5.73 inches
Style Name	Compact
Unit Count	1 Count
Voltage	3.7 volts
Warranty Type	Manufacturer Warranty
Water Resistance Level	Waterproof
White Brightness	20000 lumens

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