I purchased 4 of these (2 for each house) https://www.amazon.co.uk/Floodlight-Security-Outdoor-Waterproof-AC85-265V/dp/B00YCDU3I0/ref=pd_sim_sbs_201_2?ie=UTF8&psc=1&refRID=YXDWDPV1HGS8Q4V3YX4B i got the 50w versions.
All of which have faulty/poor PIR's. To the point of if i wave my hand in...