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Understanding the Inverse-Square Law of Light Making a Reflective Ring by Silver Deposition Would someone please School me on Throw please? The Optimal Lens for use in Thrower Flashlightsįlashlight Optics – Dome, De-doming and Throw (Some common optics & parts used in flashlights) Power Conservation Analysis of Linear & PWM Regulation Methods Need a bit of Help Understanding VF and Amps Made a new Tiny Heatblock for Reflow Soldering How to Reflow solder an LED emitter on a MCPCB Lightbox, XML-2, and some Extreme Numbers

Triple XP-L with Carlco – De-dome or not?ĭe-doming – Illustrations for Colour Changes How many De-domed Emitters have you Fried? What gives Tritium it’s different Colours?ĭe-doming with the Emitter Still in the Light ZWB2 2mm – Visible Light Blocking Filter for 365nm UV Flashlights Why do you buy Lights without High- CRI Emitters?. Various Light Sources on Colour Checker CardsĬRI vs Alternatives with Measurement ExamplesĬolor Rendering Definition, Does CCT Play a Role?Īpproximating Colour Temperature with Smartphones & Camera (This chart shows an explanation of the numbers 1A, 2B, 3C etc) (Less = “cooler” more bluish light, More = “warmer” more yellowish light) (Determined by the thickness & composition of the yellow phosphors layer covering the LED die) (Tests by BLF member Texas_Ace using different emitters, heatsinks & power levels) (Tests by BLF member koef3 using different emitters, heatsinks & power levels) (Tests by BLF member Djozz using different emitters, heatsinks & power levels)įor full details & discussion on the tests, follow the appropriate link below (Technical data relating to physical dimensions and operational characteristics of LEDs) LED Chip Dimensions, Forward Voltages & Junction Temperatures ( LEDs are “binned” according to their efficiency, brightness & performance at different currents) LED Brightness Bins Measured in Lumens at Different Currents (How the LEDs compare in size to each other) (Some common LED emitters used in flashlights)

This post is very image heavy and may take some time to fully load…. Summarised here is information taken from different resources about LEDs, drivers, batteries, chargers & various other flashlight related stuff condensed as a useful guide with external links to more information.

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