Recent content by docb

Gather App
Candle Power Forums

Help Support Candle Power:

  1. D

    USA 14500 batteries?

    What's the place to get these? Fry doesn't have these and DX.com doesn't ship batteries now.
  2. D

    suggest basic?

    That HX5 at $20 or Jetbeam is more like what I'm thinking.. Do you guys buy from DX.com? Anything there that's a great deal?
  3. D

    suggest basic?

    Can anyone suggest a one AA, single mode flashlight?
  4. D

    how bright are LEDs in stage lighting?

    Interesting that these Elations are only 1700 lumens.
  5. D

    how bright are LEDs in stage lighting?

    Do you have a product name for any of these so I can look at a spec sheet?
  6. D

    how bright are LEDs in stage lighting?

    These seem like an array of smaller LEDs, no? it says "light source: 384 (128 red, 128 green, 128 blue) ) 0.25W (20mA) LEDs, 100,000hrs" http://www.musiciansfriend.com/pro-audio/chauvet-color-strip-led-dm-linear-color-wash#productDetail
  7. D

    how bright are LEDs in stage lighting?

    I'm curious about colored lights for concert/stage use. Do these use large 1 or 3 watts emitters, or just a series of smaller LEDs? What is typical?
  8. D

    dim an LED with a photosensor?

    For my needs, it needed to be really simple, so a PIC based thing would be way too expensive.
  9. D

    dim an LED with a photosensor?

    I'm basically looking for just a switch. When the PSR gets light, I want the LED to be normal brightness. When the PSR gets covered, the LED should dim to a reduced brightness. Would be nice to be able to tweak the switching point, and the reduced brightness level.
  10. D

    dim an LED with a photosensor?

    Id like to do it with a photoresistor, but I can t find one that goes anywhere near down to 50 ohms. The other suggestions you made seem ok, but too expensive. I want to do a few of these. Anyone have any low cost solutions such as that FET based one you mention? I'm happy to build a small...
  11. D

    dim an LED with a photosensor?

    I see circuits to dim a *small* LED with a photosensor, but I want to dim a bigger 100ma or 200ma bright white LED. Anyone have any suggestions?
  12. D

    mystery led

    I don't mind. Nice to see the new project.
  13. D

    does this make sense

    Do you mean the LED will now see 5.26v????? in other words.. if a Cree XRE specs are 1000ma 3.7vfd, then is this 5w 950ma the wrong driver??? I have used the 750ma/ 3w, with this same LED. (Am I mixed up - meaning that theoretically there might be a 3 watt 700 and 3 watt 950, and the only...
  14. D

    does this make sense

    How do you know whether to use a 3watt or a 5watt driver with an LED like Cree XRE? The 5watt driver says 950ma. The 3watt says 750ma in the specs.
  15. D

    does this make sense

    I see a company with a 3watt driver that says 750ma, and a 5 watt driver says 950ma. I ordered a 5watt, for my LED which is ok up to 1000ma. Does it sound normal that 5w is fact no more than 950ma, so I'm safe using it?
See more

Latest posts

Back
Top