EB Games is currently selling some Philips Hue products cheaper than Bunnings and Officeworks, so head on in to those stores and get your 10% or 5% price beat guarantee respectively!
Hue Motion Sensor is $39 (currently $59 at Bunnings, $59.95 at Officeworks, and normal price $59.95 at EB Games):
https://www.ebgames.com.au/product/loot/256775-philips-hue-m…
Hue Dimmer Switch is $29 (currently $34 at Bunnings, $35 at Officworks, and normal price is $34.95 at EB Games):
https://www.ebgames.com.au/product/loot/256774-philips-hue-d…
Probs a silly question but can the motion sensor be linked to a google home mini?