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Digital Lux Meter - How Bright Is Bright? - Tool of The Month

Posted in Product Reviews on January 31, 2014
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There are many ways to describe light. Let us count some of the ways: “dim,” “hazy,” “bright,” “blinding,” “searing.” In addition to the descriptive terms, technical terms exist, too. “Candlepower,” “lumens,” “raw lumens,” and “foot-candles” are all terms common in the lighting world. The trouble is there’s little uniformity in all of these measurements. What the lighting world needs is a single standard by which lighting power can be judged. We may have found it. It’s called “lux.”

Lux meters vary wildly when it comes to price. We found one on sale online for less than $20, but you can easily spend 10 times that amount if you need a professional-level lux meter. We expect this one to perform adequately during our testing, but don’t have much faith in its long-term durability. Use the supplied sensor cover to protect the sensor surface from scratches when it’s not in use.

The term lux is a contraction of “luminous flux.” It’s a measure of intensity. One lux is defined as 1 lumen per square meter. Two lux is two lumens hitting that same square meter. Still confused? No worries. We picked up a lux meter and took some baseline readings.

Why worry about lux? Off-road lighting is often the difference between safety and danger after the sun sets. If you can’t see obstacles, you can’t avoid them. We’ve got an off-road LED light story in the works, where we’ll be taking lux readings, as well as showing the real-world light patterns projected. For now, take a look at our lux meter.

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Sources INC.
Seattle, WA

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