Recent content by dvgmacdonald

Hi All,I see that lots of my colleagues have spoken up, but I'll throw in my two cents.Like Casey mentions above, there are good LED profile spot options from a variety of manufacturers. They all sit at different points on the price / value curve. ETC provides a very high quality light...

I think he's trying to get to the point that most, if not all, LED fixtures cannot simply be hooked into a stage dimmer & expected to work. Many require reverse phase dimmers, others require that you put a PWM dimmer between the driver & the fixture, others have a built in DMX interface, but...

Quite right, I was using those percentages as the light that got to the surface (12% light loss = 88% in the calc). One thing to note, with LEDs you must take the photometrics from the entire fixture, not the "lamp". Because it's not just optics, but heat too, that effect LED output, the...

You might look at Harting Push-Pull Power connectors. They're rated up to 600V, power and data, waterproof, quick & easy to mate. I'm looking at them for an exterior lighting project, and the samples that I got from Harting look great. We use their connectors on our LN2 fog systems for...

If you've got an ies photometric file on the fixture and CAD of the room you can use software to do it. This also helps determine the best layout for the fixtures. Rule of thumb, wall to 1st fixture on either side should be roughly 50% of the difference between fixtures. Some of the...