LED Submini

 Our miniature and sub-miniature LED lights are the smallest, lightest LED penlights you can buy.  The sub-miniature is smaller than a cigarette in length and width.  The miniature light is thinner than a cigarette and only 10cm long!  Battery life is extraordinary.  Brightness is incredible for such a tiny light.

   LED Mini-Light


 LED Sub-Mini Light


Shared Features

  • Rubber O-Ring Sealed To Protect Against Moisture
  • Black Anodized Brass Case Resists Corrosion and is Anti-Reflective
  • Water Resistant
  • Ultra Light / Ultra Small


LED Sub-Mini Features

  • Keychain Loop
  • 6.5cm long, 0.50cm body, 0.80cm head
  • 1 to 4 Hour Battery Life (depending on wavelength)
  • Uses one Lithium 3 Volt Pin Battery BR435 (Included)


LED Mini Features

  • Pocket Clip
  • Lanyard Hole
  • 10cm long, 0.50cm body
  • Uses two Lithium 3 Volt Pin Batteries BR435 (Included)
  • 2 to 10 Hour Battery Life (depending on wavelength)


Models Available


Model Case Style  LED Color Power



$10.64 each LEDSmRed: LED Sub-Mini Flashlight Red (1 Battery) Add to cart

Sub-Mini Red 626nm 3,000 mcd



$11.21 each LEDSm880: LED Sub-Mini Flashlight 880nm Infrared (1 Battery) Add to cart

Sub-Mini 880nm (Infrared) 50 mW



$11.21 each LEDSm940: LED Sub-Mini Flashlight 940nm Infrared (1 Battery) Add to cart

Sub-Mini 940nm 50 mW



$37.47 each LEDMn375: LED Mini Flashlight 375nm Ultraviolet (2 Batteries) Add to cart

Mini 375nm (Ultraviolet) 2 mW



$21.68 each LEDMn400: LED Mini Flashlight 400nm Ultraviolet (2 Batteries) Add to cart

Mini 400nm (Ultraviolet) 800 mcd



$15.53 each LEDMnBlue: LED Mini Flashlight Blue (2 Batteries) Add to cart

Mini 465nm Blue 6,000 mcd



$15.53 each LEDMnWhite: LED Mini Flashlight White (2 Batteries) Add to cart

Mini White 10,000 mcd



$15.53 each LEDMnRed: LED Mini Flashlight Red (2 Batteries) Add to cart

Mini Red 626nm 3,000 mcd



$16.39 each LEDMn880: LED Mini Flashlight 880nm Infrared (2 Batteries) Add to cart

Mini 880nm Infrared 50 mW



$16.39 each LEDMn940: LED Mini Flashlight 940nm Infrared (2 Batteries) Add to cart

Mini 940nm Infrared 50 mW


 For comparison, check out the size of the lights versus a common pen.  These lights are really small!

Using our modified  FSC-F717 infrared sensitive camera, we took a picture of the various LED Mini lights.  The violet one on the left is a 400nm ultraviolet light.  The far two lights on the right are 880nm and 940nm infrared lights.  The 880nm and 940nm lights are not visible to the human eye.  You need an infrared sensitive camera (such as NightShot camcorders) or night vision equipment to see the light.  Notice that cameras cannot simultaneously focus on UV, visible and IR light.  This is because the wavelength affects the focal length on the lens.  If you focus on IR, the visible light won't be in focus.  In this picture, we focused on the visible white light so the UV and IR lights are not quite in focus.


 Here you can see our LEDMn400 with the 400nm LED illuminating invisible ink.  Note: 400nm will illuminate most UV fluorescent inks; depending on the ink or dye, it might not work as well as the 375nm LED or 365 fluorescent tubes.  The 400nm is less expensive than the 375nm LED unit and much smaller.  The 400nm is very well suited for automotive leak tracing dyes which are tuned for 400nm lights.  700mcd output with peak at 400nm.  This is the same LED that others rate as a 395nm LED, however, though they are looking at the minimum frequency, not the peak.

Note: The lower the wavelength, the more expensive the LED.  A UV 400nm LED cost much less than a 375nm UV LED.  Because of this, we have found that many flashlights are incorrectly labeled to show a lower wavelength than what they are.  Since we have a spectrometer and integration light sphere, we can test the flashlights for actual power and wavelength.  With some of our invisible inks such as invisible red and invisible yellow, a 365nm light will work well while a 400nm light will not.



The LED Mini and LED Sub-Mini lights both use 3-volt Lithium BR435 batteries. The LED Sub-Mini uses one battery while the LED Mini uses two batteries. The BR435 batteries, as you can see from the picture, are rather small.  We stock the BR435 batteries at great prices.

Extra BR435 batteries are available for purchase here:


$2.30 each BatLiPin: Lithium 3-Volt Pin Battery BR435 Add to cart