Added: 2 years ago
From: KoonPhysics
Views: 10,085
Sort by time | Sort by thread (beta)

Link to this comment:

Share to:
see all

All Comments (25)

Sign In or Sign Up now to post a comment!
  • Leds are far from taking over the home lighting market simply because they don't dispurse light evenly like the incondescent and the cfl does. They are too directional. Cfl is currently the best option. Incondescents on the other hand produce just 10% light and 90% heat.

  • @spottedcuscus

    The directional nature of the emitter can, and is, handled with lens design. This is a minor problem.

    Ironically the biggest problem for LEDs is heat. While they do run cooler than incandescents, they have to, to survive. Allowing the junction temperature to rise above 200F leads to shortened life to 50% output (which is a common measure of LED life).

  • lol it would have been hilarious if he said "wel the LED lights up everything else but the pages are black as hell

  • good video, but in my opinion, if you're comparing bulbs, compare the same type, not floodlight vs non-floodlight.

    thanks for the upload

  • I DISAGREE BUT IM TALKING ABOUT LEDS YOU GROW WITH.I THINK THEY GO OUT IN STRIPS SO 20 GO OUT AT A TIME.I BOUGHT AN LED PANEL AND 26LIGHTS ARE DEAD.CFLS WORK GREAT AND LAST LONG ENOUGH AND THERE

    CHEAP BUT I SEE YOUR POINT :) ITS ALL GOOD

  • Well just a little correction, you said the incandescent was hot and that alot of its energy wasnt going to light. That is the design and definition of an incandescent bulb, it uses heat to create light. So hot it glows.

  • @320bit I wouldn't call it a correction, but you are absolutely correct.

    The history of illumination has been an evolution from processes that produce light as a secondary effect (campfires and incandescents) to processes that produce light directly. With the LED, you are essentially swamping electrons for photons, so most of that waste heat and waste infrared is eliminated.

  • @KoonPhysics Thats a much better way of explaining it.  I never actually thought of it as a secondary effect, so thats a new way to look at it for me. Im still pretty opposed to using LEDs for home illumination, they just arnt bright enough and as you said they are directional. I havent seen an LED setup for a home that isnt directional either.

  • @320bit They are coming. Products are developing very rapidly.

  • USE A 6500 KELVIN AND TURN THE LIGHTS OFF AND IT WILL OWN OVER THE LED YOUR USING THE WRONG SPECTRUM.COMPARE 6500 KELVIN LEDS WITH

    6500 KELVIN CFLS AND 2700K LEDS WITH 2700K CFLS thats why your cfls look

    not as bright vs the led just my opinion.but for growing plants any cfl will own on an led

  • Sht...i broke one of those CFL's and cleaned it with my bare hand...and didn't ventilate the room very well...Will I get mercury poisoning and die too :(?

  • arent lends really spendy and unrelible ..LED=OLD TECHNOLOGY 1920S there unreliable as hell for christmas lights...there all meshed together PLUS INCANDESANTS NOW HAVE ENERGY SAVING INCANDESENTS

  • @therealrockondon: EFFICIENCY: Heating an object to make it glow produces more heat than light. Basic blackbody physics. RELIABILITY: LEDs have been replacing incandescent in traffic lights and in vehicle brakelights and headlights because they are much more reliable than incandescents. COST: Mass production, thanks to these applications, will bring LED prices down even further and further increase reliability. BTW, the first commercial LEDs came in the 1960s, not 1920s. LEDs are the future.

  • @KoonPhysics US GROWERS KNOW that leds have very little lumens so for growing there shit vs cfls

  • @therealrockondon what wattage LED's have you used and how long ago?

    

  • @jtriplett2010 i still use 3watt leds for growing..and 15watt led panels for growing.cfls for growing are way

    cheaper.led growlights are 200 and up vs a 3dollar cfl cfls have alot more lumens ALOT

  • @therealrockondon Energy saving incandescent? That's an oxymoron if I've ever heard one!

  • @therealrockondon LEDs were probably the best invention ever for lighting. They are indeed the way forward until a new technology is found. Fact is, as koon stated, LEDs ARE a million times more reliable than any cfl or incandescents (which are bulbs, so they can break easily unlike LEDs and with their heat they burn out over time unlike LEDs which dont "burn out") and they come in alot more different colors.

  • @therealrockondon

    The reason LED christmas tree lights are unreliable is that they are made of the lowest grade LED chips. When LEDS are made, they are graded and sorted. A top-quality Nichia 20mW chip is 53 cents, not including any circuitry. The LED chips in xmas tree lights are less than a penny apiece. The good chips outlast every other lighting device on the market by more than on order of magnitude.

  • LED is the future in lighting, nothing good can come from mass production and use of a bulb filled with mercury and no public education or proper disposal facilities.

  • @freedomunrestricted Exactly... CFL are environmental nightmares... Don't hear the lefties up in arms about that!

  • @Slave2Reason I actually prefer cfls to home lighting. They are cheap and provide a more cool white color than incandescents. Just dont break em and your fine.

  • LEDS ROCK! CFLS SUCK!

  • For comparing with a 60W incandescent, you need a 6W LED which should be the equivalent. The 3.5W is normal to not light as much as your 60W, it's around by a 10 times factor, so your 3.5 should be like a 35W incandescent.

  • Nice job. Thanks!

Loading...
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more