![]() They are equipped with a range of inventory options, and more than likely have a few demo setups available. If you have a lighting supply company nearby, I would go to them. They have specialists for every project and will be able to answer your questions, and might even point you to a product that isn't available at the big box stores. Honestly, they're trying SO hard to push this tech. They are expense, nearly $45/4ft TLED tube. IMO your best bet is to buy from a reputable manufactere, since the market is flooded with crap lighting. Over kill, expensive, and 9/10 you need years of experience to decipher that data. I'll clarify my post above - HPS and MH are for exterior lighting mostly (High Pressure Sodium is the orange lights, Metal Halide are the blue).įor your interior: TBH the only way to accurately measure that would be to create a photometric map of your garage. Specifically, R9 values (how good does red look under your light) often test low, but functionally there appears to be little or no difference. There are also a lot of issues with color rendering measurements of LEDs that don't match up with how people actually see it. This means you can theoretically pump up your "green values" to cheaply boost lumen levels (easier to do than boosting red due to phosphor issues). One case is how lumens are actually measured against the spectrum that the eye if capable of seeing. Frankly, all the tests and standards for lighting aren't optimized and don't measure LED performance well. I think this kind of speaks to the differences in light from the different bulb types. Very green, especially when compared to other lights. Full disclosure, I work for another fixture manufacturer but we have looked at using their LEDs before and they just don't have good coloration in my opinion. I would personally recommend against cree, but mostly cause I think their LEDs are terrible. So in conclusion, even though the two fixtures produce the same amount of lumens, and LED can harness, and direct much more of the light that is actually produced, essentially making the space you are pointing at brighter. LEDs are closer to a direction spot light, with a much wider field of view. These hotspots exist without a gradient because the light at that fixture is essentially peeling away into the night sky (ever wonder what one of the reasons we get that "orange glow" over cities is?).ĮLI5: Traditional bulbs are like a handheld lantern, with light escaping in every which direction. That's why when you see an orange parking lot, the light beneath the pole is very focused - aka "hotspots". Bulbs tend to waste a lot of light that escapes at the edge of the fixture and scatters. Lumens from an LED have a higher efficiency in terms of where their light is directed, as opposed to a traditional bulb. ![]() TBH, there's the 300 page way of explaining it, and the really really watered down way of explaining it.
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