Halloween was over a month ago with the winter holiday season already under way. In...
Halloween was over a month ago with the winter holiday season already under way. In the tradition of “The Nightmare Before Christmas”, let’s talk about scary TM-21 calculations.
One of the current challenges in the LED industry is transformer compatibility for low-voltage LEDs. MR16 LEDs are at the forefront of the issue, but not an issue with the LED MR16s themselves. The issue exists with the transformers.
As seen in the figure 1 below, white light falls along the Planckian Locus (or black body locus) on the Chromaticity Diagram. This means that depending on where the white light falls along the black body locus, the light can be bluer or yellower than another white light.
With traditional lamp sources like halogen, fluorescent and metal halide, a selection of lamps (usually somewhere around 100 samples) are burned continuously at a given voltage and position. When 50% of these lamps have ceased to function, then this determines the lamp life for that particular lamp.
Why doesn’t Solais provide LM-80 results on their lamps? That’s because LM-80 refers to the LED itself, outside of its environment.
Why doesn’t Solais have LM-79 certification? Well, that has a simple answer, there is no such thing. LM-79 is a testing process not a certification.
The most common mistake in lighting terms associated with the quantity of light is between the intensity of a light source and its total output. The total output of a light source is described in “lumens”.
LED sources are a new solution for virtually all lighting needs and have the potential to change the way we live and consume energy. The largest limitation currently slowing the adoption of LED lighting is simply that it is new and not well understood.