A lighting apparatus (2400, 2500, 2600) comprising: a string of serially-connected light emitting devices; and a bypass circuit (2410, 2510, 2610) for controlling a color point of a combined light output of the string of serially-connected light emitting devices such that the combined light output is a white light having a high color rendering index, the bypass circuit comprising a current sensor configured to sense a total current in the string of serially-connected light emitting devices and the bypass circuit being configured to variably conduct a bypass current that bypasses at least one of the light emitting devices but not all of the string of serially-connected light emitting devices, responsive to a temperature sense signal and the sensed total current in the string of serially-connected light emitting devices, whereby the bypass circuit is connected to a first node and a second node of the at least one of the light emitting devices, characterized in that the bypass circuit comprises: a variable resistance circuit (2412, 2512) configured to variably conduct the bypass current responsive to a control voltage applied to a control node; and a temperature compensation circuit coupled to the control node and configured to vary the control voltage responsive to the temperature sense signal, wherein the temperature compensation circuit comprises a voltage divider circuit (2414, 2514) comprising at least one thermistor, the at least one thermistor thereby providing the temperature sense signal. a string of serially-connected light emitting devices; and a bypass circuit (2410, 2510, 2610) for controlling a color point of a combined light output of the string of serially-connected light emitting devices such that the combined light output is a white light having a high color rendering index, the bypass circuit comprising a current sensor configured to sense a total current in the string of serially-connected light emitting devices and the bypass circuit being configured to variably conduct a bypass current that bypasses at least one of the light emitting devices but not all of the string of serially-connected light emitting devices, responsive to a temperature sense signal and the sensed total current in the string of serially-connected light emitting devices, whereby the bypass circuit is connected to a first node and a second node of the at least one of the light emitting devices, characterized in that the bypass circuit comprises: a variable resistance circuit (2412, 2512) configured to variably conduct the bypass current responsive to a control voltage applied to a control node; and a temperature compensation circuit coupled to the control node and configured to vary the control voltage responsive to the temperature sense signal, wherein the temperature compensation circuit comprises a voltage divider circuit (2414, 2514) comprising at least one thermistor, the at least one thermistor thereby providing the temperature sense signal. a variable resistance circuit (2412, 2512) configured to variably conduct the bypass current responsive to a control voltage applied to a control node; and a temperature compensation circuit coupled to the control node and configured to vary the control voltage responsive to the temperature sense signal, wherein the temperature compensation circuit comprises a voltage divider circuit (2414, 2514) comprising at least one thermistor, the at least one thermistor thereby providing the temperature sense signal.