An apparatus (500A, 500B, 800) for supplying power to a light emitting diode, LED, load, the apparatus comprising: an isolation transformer having a pair of input terminals (1S/1F) configured to receive AC electrical power and having a pair of output terminals (2S/2F), wherein the isolation transformer provides DC isolation between the input terminals at a primary side thereof and the output terminals at a secondary side thereof; a rectifier having a pair of input terminals and a pair of output terminals, wherein the input terminals of the rectifier are connected to the output terminals of the isolation transformer and the output terminals of the rectifier are connected across the LED load, and wherein the rectifier comprises: a first diode connected from a first one of the input terminals of the rectifier to a first one of the output terminals of the rectifier, a second diode connected from a second one of the input terminals of the rectifier to the first one of the output terminals of the rectifier, a third diode connected from a second one of the output terminals of the rectifier to the first one of the input terminals of the rectifier, and a fourth diode connected from the second one of the output terminals of the rectifier to the second one of the input terminals of the rectifier; and first and second capacitors (510/520, 810/812), wherein a first capacitance of the first capacitor is approximately the same as a second capacitance of the second capacitor, and wherein either: the first capacitor (510, 810) is connected across the first diode and the second capacitor (520, 812) is connected across the second diode, or the first capacitor (510, 810) is connected across the third diode and the second capacitor (520, 812) is connected across the fourth diode. an isolation transformer having a pair of input terminals (1S/1F) configured to receive AC electrical power and having a pair of output terminals (2S/2F), wherein the isolation transformer provides DC isolation between the input terminals at a primary side thereof and the output terminals at a secondary side thereof; a rectifier having a pair of input terminals and a pair of output terminals, wherein the input terminals of the rectifier are connected to the output terminals of the isolation transformer and the output terminals of the rectifier are connected across the LED load, and wherein the rectifier comprises: a first diode connected from a first one of the input terminals of the rectifier to a first one of the output terminals of the rectifier, a second diode connected from a second one of the input terminals of the rectifier to the first one of the output terminals of the rectifier, a third diode connected from a second one of the output terminals of the rectifier to the first one of the input terminals of the rectifier, and a fourth diode connected from the second one of the output terminals of the rectifier to the second one of the input terminals of the rectifier; and a first diode connected from a first one of the input terminals of the rectifier to a first one of the output terminals of the rectifier, a second diode connected from a second one of the input terminals of the rectifier to the first one of the output terminals of the rectifier, a third diode connected from a second one of the output terminals of the rectifier to the first one of the input terminals of the rectifier, and a fourth diode connected from the second one of the output terminals of the rectifier to the second one of the input terminals of the rectifier; and first and second capacitors (510/520, 810/812), wherein a first capacitance of the first capacitor is approximately the same as a second capacitance of the second capacitor, and wherein either: the first capacitor (510, 810) is connected across the first diode and the second capacitor (520, 812) is connected across the second diode, or the first capacitor (510, 810) is connected across the third diode and the second capacitor (520, 812) is connected across the fourth diode. the first capacitor (510, 810) is connected across the first diode and the second capacitor (520, 812) is connected across the second diode, or the first capacitor (510, 810) is connected across the third diode and the second capacitor (520, 812) is connected across the fourth diode.