I have one of these suspended from the ceiling about 2.5' above my lathe & one hanging behind & slightly above my head at the mill. No significant shadows from either location, tons of light. Picked them up on sale for less than half price. At that distance, there's no chance of anything splashing on them, either.
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DavidR8's shop shenanigans
- Thread starter David
- Start date
Do you have a picture of them? The site doesn't have a pic.
Huh. Does for me. Tried to download the image, couldn't display it from the desktop. It's a 4' fixture w/ 4 LED tubes in it. 10,000 lumens.
DPittman
Ultra Member
I've got a similar lamp on my lathe and really like it. Much better with led bulbs in it. I also use it as a shield (sort of) when I've got aggressive chips flying at me or out of control bird nests that are threatening to take flight.
@David & @JustaDB The image is fine for me too.
For a non-focussed source, light intensity is inversely proportional to the square of the distance from the source. This means that as you move twice as far away from a light source, the light intensity becomes one-fourth (1/4) as bright.
There is also a difference in perceived intensity between directional and distributed light sources. Again, the perceived light intensity is greater for directional sources.
That's why you need less lumens as the light source gets closer or is more beam like.
LUX is a better comparison than Lumens when comparing how a surface will look with a light shining on it.
With my derelict eyesight, more light is better. I prefer a bright diffused overhead light that lights up the entire work area in combination with a directional light source focussed on the work itself. Someday I'll get around to making a spindle light for the mill, but it's way down on my priorities because my directional magnetic post light really does work great.
For a non-focussed source, light intensity is inversely proportional to the square of the distance from the source. This means that as you move twice as far away from a light source, the light intensity becomes one-fourth (1/4) as bright.
There is also a difference in perceived intensity between directional and distributed light sources. Again, the perceived light intensity is greater for directional sources.
That's why you need less lumens as the light source gets closer or is more beam like.
LUX is a better comparison than Lumens when comparing how a surface will look with a light shining on it.
With my derelict eyesight, more light is better. I prefer a bright diffused overhead light that lights up the entire work area in combination with a directional light source focussed on the work itself. Someday I'll get around to making a spindle light for the mill, but it's way down on my priorities because my directional magnetic post light really does work great.