- Aspheric focal length question
- Who makes the toughest, brightest tritium light keychains?
- Newfangled LED Lightbulbs Shut Down Entire Building
- Hello and question
- Optics questions...aspheric rings?
- Are Incandescent light bulb's still "the-go-to bulb"?
- Looking for standard commonly available light sources
- A question
- Xenon puck light retrofit
- Who produces the Festool Syslite?
- Best Household Full Spectrum CFLs: BlueMax or Azlo?
- Litroenergy Micro Particles
- Running a AA with spacer in a 2xCR123 setup?
- light, photons, irradiance. Adding it all up help.
- Opinions on switch design
- Cheap and decent growlights
- Red light for preserving night vision?
- Flashlights as kids....
- Travel Channel: Made in America - Maglite factory.
- UV dangers question
- Is there a flashlight season?
- Military jeep xenon searchlight question
- These guys
- Still looking for 3a buck with dimmer
- clean flashlight from leaky batts
- Optimal Utility, Redundancy. Weight and Battery Usage
- Photos of your Jack-O-Lanterns!
- Ultraviolet Radiation and Heat
- AC 230V LED driver design help
- HELP! Brightest 10mm LED bulb???
- Home security system w/floodlights and multi light switch
- Do High-CRI LED Incandescent-Bulb Replacement Units Exist
- Lighting for a gun safe
- DIY HID Floods
- Photovoltaic Energy and Amount of Light Passing
- lamp runtime calculation help please.
- I saw a flashoholic yesterday
- Niteize Spotlit question
- Rf Interference
- What's the lowest lumen rating that the eye can detect? Less than .003 lumens?
- 1157 LED
- Best 14500 battery & IC protection or not?
- Reduce the wattage of lights used
- There are people like me
- Logging battery voltage against time under load.
- Is this possible?
- CXA2011 Thermal feedback for worklight!
- CRI - marketing ploys
- Optics for Lantern
- Lighting Research Center at Rensselaer To Host International Symposium on the Science