Standard Line voltage (usually 120V/60Hz or 220V/50 Hz) does not usually provide enough
frequency or voltage. Thus, a Power Supply is needed to convert standard line voltage to a higher voltage and frequency (recommended is 280V/650Hz for high brightness). The power supply plugs into a standard wall outlet, and is then connected to the lamp.

While the lamp will never ‘burn out’, it will gradually become dimmer over time as
it is used. ‘Compensating’ power supplies compensate for that dimming by automatically
increasing voltage from it’s initial setting as the lamp ages. This patented design extends the
useful brightness life of the lamps. Since some applications do not require high brightness, the voltage may be set anywhere lower then 280V during the installation. This will lessen the brightness, depending on how far below 280V it is set, but it will extend the useful life of the lamp even further.

Power supplies are available that power lamps as small as 100 square inches (65 cm2) to over
85 square feet (8 M2) of lamp area.

Compensating Power Supply Information:
.. Accept Input (Mains) voltage of anywhere from 100 to 250 Volts AC, at either 50 or 60 Hz.
.. Produce Output voltage (adjustable) of anywhere from 50 to 330 Volts AC, at 650 Hz
.. Are UL (Underwriters Laboratories) Listed to UL48 standard
.. Have Fused input voltage protection
.. Electronic Open Circuit and Short Circuit and Ground Fault Interruption Protection
.. Will accept external Dimming and Flashing control models through 6-Pin connector
.. These models can be built with a DC front end for transit applications upon request.

Compensating Power Supplies come in 3 models. Each model can power a different
range of lamp sizes (see back for lamp size ranges and additional power supply information):