A lamp-post supports a lighting unit in the form of an array of LED's (11). The LED's (11) are supplied with power from a local battery (8) under the control of a control circuit (13). The local battery (8) is recharged from a local solar cell (17). The charging of the local battery (8) may be augmented y current supplied from a local wind powered generator driven by a fan (5). The control circuit (13) supplies the LED's (11) with pulses of current at a rate faster than can be perceived by the human eye and for a duration that gives the impression of a constant light source.