Newest Review: ... and feels sturdy and robust. The black colour is quite bland and samey but I guess it could be worse. The PIR sensor is quite effectiv... more
Good cheap PIR Floodlight
Eterna 500w PIR Floodlight
Member Name: Randal
Eterna 500w PIR Floodlight
Advantages: Long lasting construction
Disadvantages: 500W bulb could be expensive to run
When we moved into our new property a while back I noticed that there were a few dark areas around the house where the light from the normal outside lights didn't really reach. So I bought a pair of these flood lights to light up the side path and the back garden, especially useful for when the dogs go out at night.
The first useful bit I wanted was the PIR element or Passive InfraRed detector. Set up correctly, this will detect movement and body heat crossing its' path and then switch the floodlight on for a set time period to light the area. It's a useful feature because it means that you don't have to manually switch the light on and off, hence simplifying your wiring to the unit. It also means that the lights don't get left on for long periods (which can get expensive with the 500W bulb) because they are automatically switched on and off by the PIR.
At around the £15 mark for one, what do you get? Basically it is a weatherproof floodlight with a PIR underneath. The casing is aluminium to ensure it is light weight and that has been anodised in black. Combined, it should ensure that the unit has a long operational life and does not rust.
There is a 'U' shaped bracket the holds the light bit in position with a bolt affair at either end. These bolts will allow you to tilt the light to various angles once it is mounted. This bracket also has some holes in it on the back which you can use to mount it to a wall. Obviously the higher up you can mount it the better because the PIR and light will cover a wider area than if it was just close to the ground.
Before mounting it, you need to consider what area you want the PIR to cover and 'protect'. Are there any obstacles in the way? The PIR on this light has a 110 degree detection range which runs out to 12 metres. So think of it as a wide cone coming out from the PIR. If you want to cover a wide area, higher up may be better to give that arc. Covering an alleyway by the side of your house might be better with the light high up pointing straight down with the PIR to give a wide detection area along the alleyway. For a back garden, the PIR almost needs to be horizontal to cover a larger area. So before mounting the unit, some thought needs to be considered as to what you want the unit to do and light. Currently I have set one up at the side of the house to cover the alleyway with the second one doing the job of covering the back garden.
Once it is mounted, you can make some fine adjustments to the PIR by tilting it and adjusting the position on the mountings to ensure it covers the intended area. You can also make some adjustments on the PIR to determine how it should operate. Firstly, you can determine what lux level you want it to start operating at, that is to say, how dark do you want it to be before it operates. It would be a waste to allow it to operate on and off throughout the day, so trial and error should enable you to set it to start operating at say dusk and stop operating just as the sun comes up. The second adjustment is how long do you want the light to come on for. This is adjustable between 5 seconds and 5 minutes, again a personal preference choice.
Overall, once set up, it is basically a fit and forget item because it is entirely automatic in operation. I've had mine set up for many months now and they have never failed me yet. In the early stages it was quite disconcerting because when the light suddenly came on, we would all rush up to see what had set it off, thinking perhaps someone was in the back garden. But then we noticed that it was the next door neighbour's cat doing his nightly patrol across our garden. So you do sometimes get some false alarms so to speak, but at least the unit is working correctly to detect things.
My only gripe with it is the 500W bulb which, when operated, can be a major cost on your electricity bill over time, especially when you have 2 of them operating. I've noticed recently that some manufacturers are starting to use a 150W bulb rather than the 500W for these sorts of floodlights. I suppose it is a little like putting an eco bulb in - similar brightness for less cost to run.
In summary, this is a good cheap PIR floodlight that does exactly the job it was intended for.
Summary: Good cheap floodlight with PIR
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