I bought 3 of these as winter is kicking in and the dark knights are here, so these I thought would be able to stop on longer and still cost less in running.
The construction of the cast case is really good and held together with stainless steel allen bolts all round. However the stalk holding the PIR is a cheap plastic, on of which broke while on the bench setting. While I was familiarizing myself with the timer and LUX this just snapped clean off.
The PIR also can not be move horizontally (left to right) just vertically (up and down).
A second lamp would not stop on for more than 28 seconds, bit short as the time scale states 5 secs - 12 mins +/-.
The third lamp fitted and left to the elements. I hope that the 3 year warranty is not needed as the SMD is not replaceable.
If you look at the enlargement image of the box you will see all the 'quick at a glance' boxes showing the lamp has, LUX, TIMER, and SENSOR, (the 3 dials on the bottom of the PIR). Well there is NO SENSOR, so the light is unable to be adjusted other than LUX & TIME, quite important for setting of different situations, even an own brand light from a large DIY center has this setting.