| The light is almost 100% PUR and thus perfect for
photosynthesis. Light can be efficiently distributed over large spaces,
superior to all arc-based lamp technology in every sense, and costing
no more than lamps which are used extensively in the Film and Theatre
industry. Unlike all other artificial light sources, the light output
and colour (light output quality) does not degrade over time and it
is fully dimmable down to 30%. The lamp is very simple; a hollow quartz
sphere with sulphur and argon gas so, unlike all other forms of lighting,
it is environmentally benign. The lamp could be crushed to dust and
would make a good fertilizer for your garden. It contains no lead,
unlike most other lamps, no mercury, unlike all fluorescent lighting
and no arsenic unlike most LEDs (Gallium Arsenide).
The sulphur plasma consists mainly of dimer molecules (S2), which
generate the light through molecular emission. Because this, instead
of atomic emission, is the mechanism of light generation, the emission
spectrum is continuous throughout the visible spectrum.
The lamp’s output is low in infrared energy, and less than
1% is ultraviolet light. As much as 75% of the emitted radiation
is in the visible spectrum, far more than other types of lamps.
The visible light output mimics sunlight better than any other
artificial light source, and the lack of harmful ultraviolet radiation
can be especially benefi cial to more vunerable fixtures, equipment,
young plants and humans.
The spectral output peaks at 520 nanometers and the correlated
colour temperature (CCT) is approximately 6000 kelvin’s with
a colour rendering index (CRI) of 86. The lamp can be dimmed to
40% without affecting the light quality, and light output remains
near constant over the life of the bulb.