measure

The lumen’s limits: why old measures of light output don’t always work for LEDs, and what to do about it

The lumen’s limits: why old measures of light output don’t always work for LEDs, and what to do about it

When replacing one light source with another, you need a medium of exchange, and lumens exist to serve as that medium. However, LEDs may be the end for the old faithful lumen. In practice we’ve found it to be a significantly inaccurate indicator of brightness where LEDs are concerned.

Quantifying quality: on measuring good light after the CRI

Quantifying quality: on measuring good light after the CRI

LEDs are forcing an update to the CRI and a new standard is being considered that broadens the palette of test colors and adds a dimension to quality measurement. We think it's better.

The brightness you see versus the brightness you read about: on light levels, LEDs, and the shortcomings of the lumen

The brightness you see versus the brightness you read about: on light levels, LEDs, and the shortcomings of the lumen

The industry uses a measure called the "lumen" to measure light volume across light sources. Based on our installations, we believe the better quality the light, the "brighter" a lumen appears. Here we'll explore why we think the lumen fails to indicate brightness properly where LEDs are concerned and what we do about it.

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