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LUXPRO XP918v2 rechargeable flashlight plugged into a USB-C cable with its indicator glowing blue
Should You Leave a Rechargeable Flashlight Plugged In?
You can, and it will not overcharge in the dangerous sense, but you should not make a habit of it. Keeping a lithium-ion cell at 100 percent, especially somewhere warm,... Read more...
Child in a witch costume trick-or-treating with a glow bracelet on the candy bag and a small LUXPRO flashlight lighting the sidewalk
Glow Stick or Flashlight for Trick-or-Treating?
Both, because they do different jobs. A glow stick helps drivers see your child. A flashlight helps your child see the curb, the steps and the extension cord across the... Read more...
AAA, AA, C, D, CR123A, 18650 and 21700 batteries lined up to scale
What Batteries Do Flashlights Use? AA to 18650 Explained
Flashlights run on everything from AAA alkalines to 26650 lithium-ion cells. Here is what each battery is good for, why voltage matters more than size, what "D4" on a package... Read more...
An 18650 battery measuring 18 mm wide and 65 mm long next to an AA battery for scale
What Is an 18650 Battery? The Number, Explained
An 18650 is a cylindrical lithium-ion cell 18 mm wide and 65 mm long. The number is just its size. Here is why flashlights use it, how protected, button-top and... Read more...
LUXPRO XP920 flashlight with an 18650 battery and a battery-level gauge
How Long Does an 18650 Battery Last? (Per Charge + Lifespan)
A good 18650 runs a flashlight for anywhere from about an hour on high to several days on low per charge, and lasts roughly 300 to 500 full cycles, usually... Read more...
Child in a dinosaur costume wearing a LUXPRO headlamp angled down at the sidewalk while holding a candy bucket and a parent's hand
Should Kids Wear a Headlamp Trick-or-Treating?
For school-age kids, a headlamp is a great Halloween light: both hands stay free for the candy bag and a parent's hand. The catch is that a headlamp points wherever... Read more...
Four rechargeable battery types side by side: lithium-ion 18650, LiPo pouch, LiFePO4 and NiMH AA
What Is the Longest-Lasting Rechargeable Battery?
It depends on what "lasting" means. Lithium-ion gives the longest runtime per charge, LiFePO4 survives the most charge cycles, and low-self-discharge NiMH holds a charge best on the shelf among... Read more...
LUXPRO LP32UV black light making a skeleton prop and a glass of tonic water glow on Halloween
What Glows Under a Black Light? Halloween Ideas
Tonic water, highlighter, white costumes, glow-in-the-dark props, neon face paint and even petroleum jelly all light up under UV. Here is what glows, what doesn't, how to use a UV... Read more...
LUXPRO LP32UV UV flashlight aimed down at the floor beside a pair of safety glasses
Are UV Flashlights Safe? Eyes, Skin, Kids and Pets
Consumer UV flashlights emit low-power UV-A and are safe for normal use with one firm rule: never look into the beam. The beam looks dim, so your eyes do not... Read more...
LUXPRO LP32UV held low over a dark carpet revealing two glowing yellow-green pet urine stains, one outlined with painter's tape
How to Find Pet Urine With a Black Light (Step by Step)
Dried pet urine glows dull yellow-green under a UV flashlight, but only if the room is fully dark, the stain is dry, and you know how to tell urine from... Read more...
Side-by-side UV beams: a faint gray-white 365 nm beam and a visibly purple 395 nm beam
Is a Blacklight a UV Light? 365 nm vs 395 nm Explained
A blacklight is a UV light, specifically UV-A. The difference that matters when you buy one is wavelength: 365 nm vs 385 to 395 nm. Here is what each does,... Read more...
A phone flashlight with tape over it shows nothing on carpet, while the LUXPRO LP32UV UV flashlight reveals a glowing stain
Can You Use Your Phone Flashlight as a UV Light?
No. A phone flashlight cannot become a UV light, because its LED produces essentially no ultraviolet to begin with. Here is why the tape-and-marker trick seems to work, what it... Read more...