Abstract: A power control device 100 for an electrical load. The power control device 100 has an input 120 for receiving electrical power; an output 140 for supplying electrical power from the input to the electrical load; and a control module 160 for controlling the supply of electrical power to the electrical load from the output. The control module 160 is configured to define a plurality of discrete power-on timings, over a time period, during which electrical power is supplied from the output for powering the electrical load.

Abstract: A lock system is described which includes a range monitoring system including a computer processor to monitor the proximity of the bin to a base station; a collection monitoring module including a computer processor to monitor when the bin is being collected. Also described is a computer-controlled method of inhibiting bin access to unauthorised persons, the method includes the steps of monitoring proximity of a bin to a base station with a range monitor having a computer processor to monitor the proximity of the bin; monitoring bin collection movement with a computer processor having a lift monitor, and unlocking a bin lock with a computer controller when the range monitor detects that the bin is proximal a base station and locking the bin lock when the range monitor detects that the bin is distal the base station.