Do security systems work when the power is out

Imagine you’re relaxing at home, enjoying a cup of tea and your favourite TV show, when all of a sudden the lights go out. Now, the sound of a loud bang comes from outside, followed by the thud of breaking glass. You instinctively reach for the light switch, but before you can hit it, a burglar has broken into your house, terrified you and your family.

What would you do? If you’re like most homeowners, you’d probably feel safer arming yourself with a few of those trendy smart security cameras. After all, with the lights out and the action shots of a burglar in the dark, it’s tough for the viewer to tell what’s real and what’s not. But have you ever actually tried taking footage with night vision after a power outage?

Even when the electricity and WiFi are working properly, recording in black and white using your smartphone’s flash is extremely difficult after sunset. A crime would have to be close to succeed in eluding you, and even then you’d need a very keen eye to notice the difference between a blurry image and one that’s been purposely aimed at hiding something.

Thankfully, there’s a solution to this problem – namely, motion-sensor security cameras that are completely independent of the power supply. So if the lights go out but you still have electricity flowing, these cameras will work fine, recording in high definition at all times. And when the lights do come back on, they’ll still be there, preserving the evidence even if it’s been a while since you last checked on your home’s security.

These devices are so cool because they don’t require a steady stream of electricity to function. Rather, they use sensors to detect movement, which in turn triggers the shutter to snap a photograph or record a video. What’s more is that since they don’t rely on electronics to function, they’re completely immune to power outages. So even if your WiFi connection goes down along with the outlet, the security cameras will still be able to get the job done.

Why are security cameras important?

Let’s be honest, being a homeowner is a stressful job, doubly so when you consider all the fear and anxiety that comes with living in a big city. For those looking to take the plunge and become a proud homeowner, it’s important to realise that protecting your home isn’t only about locking the doors and installing a few alarm systems – it’s about feeling safe and secure in your own home, knowing that if anything were to happen, you have the evidence to back you up.

In a world full of uncertainty, it’s essential to have the ability to look back through photos and video footage to see who entered your home and when. This footage can then be compared to existing records of previous break-ins or submitted as evidence in court if necessary. The fewer ambiguous images that exist after the fact, the fewer problems you’ll have down the line. For this reason, many homeowners choose to invest in a motion-sensor security system, which automatically captures images every time it detects movement.

Types of motion-sensor security cameras

Not all motion-sensor security cameras are made equal, and while they’re all relatively safe and effective, some are much better than others. Here are some of the most important things to look for in a home security camera.

Type of glass used for the lens

The glass that optically connects the camera’s lens to its sensor plays an important part in how well it will record at night. It should be of a very high quality, free of irregularities, and have a high degree of transparency. The thicker the glass, the better, as it will improve night vision by reducing the amount of light that reflects off objects such as windows and mirrors. When shopping for a security camera, make sure that it has a glass lens.

Flood lighting

Even when it’s not dark outside, shadows can play tricks on the eye. This is why it’s important to have flood lighting around the house – both inside and outside – to ensure that all the areas are well-lit and can be seen by the camera. The light should be bright enough to create shadows and contrast with the indoor and outdoor elements so that everything is easily visible. Even without shadows, a brightly lit area will attract the eye immediately and make the camera operator more aware of his or her surroundings. A well-designed flood light should not only illuminate the house and patio but also project the images on to the wall for ease of checking when monitoring footage via WiFi. This will help with improving your home’s security without having to constantly monitor the camera’s display.

Field of View (FOV)

The camera’s field of view (FOV) determines how much of the environment the camera can see, as well as how much of the picture will be blured by the atmosphere. The wider the FOV, the more it will zoom in and out, and the more easily it will capture moving subjects. When selecting a security camera, make sure that it has a large FOV and high-quality optics – as these will greatly improve the quality of footage. The larger the FOV, the less likely it is to suffer from “tunnel vision”, in which only parts of the scene are recorded and the rest is out of focus.

Response Time

The response time of a security camera measures how quickly it can capture images after it has detected movement. The faster this time is, the better, as it will greatly reduce the chance of missing important events. The most ideal response time for a security camera is around one hundredth of a second, which is almost imperceptible to the human eye. So if you’re watching TV and a car crashes into your house, the security camera will have recorded it before you even knew what happened.


For those looking to expand their home security system, storage is one of the most important factors to consider. The majority of security cameras today have a memory card slot, which allows you to record and store as much as you want. The more you put in it, the more you’ll get out of it. When selecting a storage medium for a security camera, make sure that it is a USB drive that’s as fast as possible and has enough free space to hold your entire collection of home footage. Storing on an internal hard drive may also be a good option, as it’s less likely to become corrupt than an external drive — especially if you store it on a separate hard drive or SSD (solid-state drive).


This factor refers to how easily the camera can be moved around and pointed in the right direction. If you have a particularly large area that you want to cover, or if your home is remotely located and hard to monitor, then having a small mobile unit may be a better option than having a large stationary camera mounted on the wall. When shopping for a security camera, make sure that it is light and has a small enough size to fit in your hands comfortably so that you can easily point it in the direction of the area you want to cover. If you have a specific place in mind for it to be mounted, then the camera will be much easier to use and will not be as likely to be damaged or destroyed in the process — especially if it’s mounted on a stand rather than held in your hands. When choosing a location for your security camera, think about where you want it to be visible and accessible, as well as whether you want it to be hidden or hidden somewhere obvious.

Things to avoid

While the above criteria are all important to consider, they are not necessarily all that’s out there. After all, not all security cameras are created equal, and some may have worse flaws than others. Here are a few things you should avoid if you want to reduce the chances of having a bad experience with a security camera:

  • Anything cheap
  • Anything that’s not water-resistant
  • Vibrations from vehicles, animals, or the wind
  • Anything that’s made of plastic

With any new piece of technology, there are bound to be some learning curves involved. However, with the right guidance and lots of trial and error, you will be able to harness the power of these devices to protect your home effectively. Remember that since they don’t require a constant power supply to work, a security camera’s chances of working are greatly improved if you install it outside, particularly if it’s in a rough location. This is because harsh environments such as extreme temperatures, high winds, and heavy rains can cause the batteries to drain faster, resulting in poor picture quality or complete failure of the device. Finally, make sure that any storage medium that you use has at least a 256GB capacity to ensure that you don’t encounter any storage space problems in the future.

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