Abstract: A lamp is disclosed that includes a light source that requires high voltage for starting. A reflector body includes an electrically conductive reflective surface that is oriented to receive light from the light source and direct the light in the desired direction. A preselected surface portion of the reflector body is devoid of the electrically conductive reflective surface. First and second lead assemblies associated with the light source, and that supply power thereto, pass through openings in the reflector body. The lead assemblies are spaced from the electrically conductive reflective surface portion by the preselected surface portion that is devoid of the reflective material to preclude arcing. Asymmetrical lead wire assemblies may also be advantageously used to increase the electrical standoff.

Abstract: A lamp is disclosed that includes a light source that requires high voltage for starting. A reflector body includes an electrically conductive reflective surface that is oriented to receive light from the light source and direct the light in the desired direction. A preselected surface portion of the reflector body is devoid of the electrically conductive reflective surface. First and second lead assemblies associated with the light source, and that supply power thereto, pass through openings in the reflector body. The lead assemblies are spaced from the electrically conductive reflective surface portion by the preselected surface portion that is devoid of the reflective material to preclude arcing. Asymmetrical lead wire assemblies may also be advantageously used to increase the electrical standoff.

Abstract: A power supply with a high voltage current regulated output wherein input devices are gated ON and OFF to regulate the output current. The output current is coupled through a current limiting inductor to a high voltage fast electronic switch (E-switch) that turns ON and OFF much faster than the power supply can shut down. The electronic switch is bypassed with a resistor network that is sized to dissipate slightly in excess of the full power rating of the power supply during a shut-down cycle. The electronic switch is normally gated ON providing a low impedance path for current charging the capacitor bank. When a short circuit condition is sensed, the E-switch is turned OFF and the resistor network limits the short circuit current, limits the voltage across the E-switch, and dissipates any energy stored in the inductor and the power supply circuitry during power supply shut-down.