A system comprising: a current converter circuit for airfield ground lighting, the current converter circuit comprising: a bi-directional switch including a first metal-oxide-semiconductor field-effect transistor, MOSFET, (222-1) and a second MOSFET (222-2); an inductor connected between a drain of the first MOSFET (222-1) and a drain of the second MOSFET (222-2) and configured to store energy from an alternating current, AC, source in response to the bi-directional switch being on, wherein the current converter circuit is configured to be connected to the AC source ; a light emitting diode, LED ; an output capacitor configured to discharge to power the LED ; a first diode (224-1) connected to the drain of the first MOSFET (222-1) and the output capacitor ; a second diode (224-2) connected to the drain of the second MOSFET (222-2) and the output capacitor ; a third diode (224-3) connected to a source of the first MOSFET (222-1); and a fourth diode (224-4) connected to a source of the second MOSFET (222-2); and a controller configured to switch the bi-directional switch from on to off to cause the inductor to discharge to the output capacitor in response to a voltage across the output capacitor being less than a threshold voltage. a current converter circuit for airfield ground lighting, the current converter circuit comprising: a bi-directional switch including a first metal-oxide-semiconductor field-effect transistor, MOSFET, (222-1) and a second MOSFET (222-2); an inductor connected between a drain of the first MOSFET (222-1) and a drain of the second MOSFET (222-2) and configured to store energy from an alternating current, AC, source in response to the bi-directional switch being on, wherein the current converter circuit is configured to be connected to the AC source ; a light emitting diode, LED ; an output capacitor configured to discharge to power the LED ; a first diode (224-1) connected to the drain of the first MOSFET (222-1) and the output capacitor ; a second diode (224-2) connected to the drain of the second MOSFET (222-2) and the output capacitor ; a third diode (224-3) connected to a source of the first MOSFET (222-1); and a fourth diode (224-4) connected to a source of the second MOSFET (222-2); and a bi-directional switch including a first metal-oxide-semiconductor field-effect transistor, MOSFET, (222-1) and a second MOSFET (222-2); an inductor connected between a drain of the first MOSFET (222-1) and a drain of the second MOSFET (222-2) and configured to store energy from an alternating current, AC, source in response to the bi-directional switch being on, wherein the current converter circuit is configured to be connected to the AC source ; a light emitting diode, LED ; an output capacitor configured to discharge to power the LED ; a first diode (224-1) connected to the drain of the first MOSFET (222-1) and the output capacitor ; a second diode (224-2) connected to the drain of the second MOSFET (222-2) and the output capacitor ; a third diode (224-3) connected to a source of the first MOSFET (222-1); and a fourth diode (224-4) connected to a source of the second MOSFET (222-2); and a controller configured to switch the bi-directional switch from on to off to cause the inductor to discharge to the output capacitor in response to a voltage across the output capacitor being less than a threshold voltage. <EOS>