Are Solar Panel Security Lights Any Good?

Solar-powered security lights are an environmentally friendly method to keep your house well-lit at all hours of the day and night. The HMcity 120 LED Solar Lights, our top option, have a motion sensor that turns on when something moves by at night. With just one of these outdoor security lights, you can light up 200 square feet of your front or garden; when bundled together, you can light up 800 square feet.

A solar-powered security light not only makes you feel safer, but it also installs quickly and won’t boost your monthly electric bill, making it great for the frugal DIYer. To help you narrow down your options, we pitted some of the most well-known solar power light fixtures against one another to discover which goods literally outshine the competition.

Is it possible to use solar security lights?

Flood lights have been around for a long time, but their purposes have evolved along with the materials used to manufacture them. Flood lights have been used to illuminate athletic events through twilight and into the evening for over a century. Flood lights are still used for athletic events, and high-intensity lights have recently been discovered in construction sites, theaters, lighthouses, and even the typical home. Lighting usage has increased in tandem with advancements in lighting technology. Solar lighting has emerged as a new greener source of light energy, with significant ramifications when combined with flood lights. Solar powered flood lights can be erected anywhere with a fully self-contained device, regardless of the capacity to run power lines. A summary of what a flood light is, its history, how solar flood lights function, and how long they last can be found below.

What are Outdoor Flood Lights?

The Merriam-Webster dictionary defines flood light as “artificial illumination in a broad beam.” Motion sensor flood lights are high-powered lights that illuminate a vast area and are actuated by movement. Flood lights are now used as LED security lights in homes to ward off intruders, view visitors, critters, and parcels, and just monitor a physical location. A high-powered security flood light’s capacity to efficiently illuminate a room makes it the ideal light to utilize in conjunction with cameras, motion detection, and other theft deterrent systems at your front door or throughout your home. At night, solar security lights are typically utilized to illuminate the area of interest. Night sports, illuminating the road, night construction, and night photography are just a few of the applications. Today’s outdoor flood lights must have a brightness rating of 700-1400 lumens, with the intensity increasing as the area illuminated increases. The dispersion of light is what distinguishes a flood light from other lights. Flood lights, on the other hand, are diffused and cover a large area, whilst LED work lights and flashlights are concentrated and focused.

History of Flood Lights?

The lighthouse was the first bright light that was intended to span a wide and big region. Lighthouses have been present for hundreds of years, and they were the first source of continuous illumination. The Fresnel lens was intended to concentrate light into wide strong beams of light that could reach miles in fog. The lens’ next application after the lighthouse was in theater shows, where it was used in lamps to illuminate actors in dimly lit spaces. The first flood lights were then employed in a major athletic event for polo in 1878. Flood lights for home security systems were not popular until the motion detector was invented. When motion is detected by a motion detector, the lights will turn on. Due to the fact that the majority of burglaries occur at night, a very bright light can dissuade thieves and burglars by exposing their location and identity. From dusk to morning, some dual head solar motion sensor lights with a broad angle are often mounted as wall lights and flag poles for parking lot lighting or just for home security.

How do Solar Flood Lights Work?

To work, LED solar flood lights rely on a variety of electronic components. Solar flood lights function by capturing the sun’s energy to produce electricity (watts), storing it, and then deciding when to use it to power an LED bulb or a sequence of LEDs. A solar flood light’s main components include a battery-operated solar panel, a photo light sensor, an LED spotlight, an LED motion sensor, and a brilliant light emitting component. The solar panel is what collects the high-quality solar light energy in the solar cell and converts it into electricity that powers the system. The solar panel generates electricity, which is stored in the battery. The battery life of the best solar flood lights allows the machine to run in auto mode all night. The flood light is more intelligent than a regular light because of the photo sensor and motion detecting detector. The photosensor is a component that can detect whether the environment is dark or bright. The solar motion light detection range refers to the sensor’s ability to detect motion within a certain radius. These two parts work together to ensure that the light is only switched on at night and when motion is sensed. The light will not turn on if one of the detectors is tripped but the other is not. The LED is the final component, and it is arguably the most significant. LED light bulbs are preferred over other light sources because they require extremely less energy to produce the same quantity of light. To guarantee that the LEDs match the requirements for flood lighting, a solar LED flood light with 82 LEDs and a 270 degree spread is perfect.

How Long Do Solar Flood Lights Last?

Solar outdoor motion sensor flood lights have a long life expectancy, however mileage may vary. The battery is the most important component to consider when it comes to wear. When a battery is entirely depleted from a full charge, it is referred to as a battery cycle. Even rechargeable batteries have a limit on how many charge cycles they may go through before showing signs of degraded performance. Different environmental conditions, such as extremes in temperature and moisture, might reduce battery efficiency and shorten the solar light’s lifespan. Finding a solar flood light that is waterproof, weatherproof, heat-resistant, and frost-resistant will help you save money on unnecessary wear and tear. The LED lights themselves have a lifetime run span of around 100,000 hours. That means the LED motion in flood lights can be used for almost 8,000 nights, according to some basic math. That figure ignores the clever outdoor motion sensor light detecting on/off switches, which would extend the life of the LED bulb by turning it off when not in use.

High-quality solar energy flood lights are an excellent method to add new outdoor lighting to existing locations without having to engage an electrician to install new wiring. Because the solar flood light is self-contained, all you need is a screwdriver and a source of light to reap the benefits of having flood lights. When compared to other floodlights on the market, solar floodlights make a highly strong argument because the units are self-contained and will endure for years. They are not only more convenient and easy to use, but they are also a lot greener option that will save you money in the long run.

What is the lifespan of a solar security light?

Summer is in full swing, and people are starting up the grills and cleaning out their pools in preparation for yet another season of backyard parties and BBQs. With all of the gatherings going on and the weather being so pleasant at night, the party shouldn’t have to end with the sunset!

Charging Solar Lights for the First Time

Solar illumination has long been a viable solution for lighting needs in the home and garden. To get the most out of your new solar lights, they must first be completely charged before they can function to their maximum potential. The amount of hours it takes for your solar lighting gadget to charge is determined by how much direct sunshine it receives. Before using your solar lights, we recommend charging them for one to two days. Some may be charged for less time, but this will reduce the amount of time they may perform. Naturally, a few partially overcast days in a row or one completely dark day will decrease your solar lights to a weak glow in a matter of hours.

Full Charge of Solar Powered Lighting

We discovered that while the amount of time a solar light can work on a full charge varies by product, the general range for all types of solar lighting was 4 – 12 hours, with an average of 8.5 hours of illumination on a full charge. This is a wide range, but if you know what kind of solar lighting application you’ll be utilizing, you can get a better idea of how long your solar garden lights will last.

How Much Time for Specific Kinds of Solar Lighting

With an average of 9.8 hours of illumination and a range of 7 to 12 hours, solar path and accent lighting appears to outperform hanging and lamp post-mounted devices. Solar lights for hanging and lampposts provide an average of 7.3 hours of lighting with a range of 4 to 12 hours. The difference in average is most likely related to solar panel positioning rather than solar light kind. Because some mounted devices’ solar panels are shadowed by eaves or other objects for part of the day, solar ground lights may have superior placement on average.

The fact that solar security and flood lighting do not stay on all night but only switch on when activated adds to the complexity. Solar-powered security lights perform best after they have been charged for several days. Before turning them on at night, some individuals charge them for up to five days. This allows the batteries to charge up to full, ensuring that even if it rains or clouds, the battery’s reserves will be sufficient to see you through the night. The length of time that solar security lights remain illuminated after each activation varies as well. This can range from 10 seconds to four minutes, with larger illumination times implying a shorter overall working period during the night. Almost all solar security lights may be set to have shorter or longer illumination times on each activation, allowing you to tailor the light to your specific needs.

The majority of solar lighting gadgets on the market feature automatic sensors that turn on the light at nightfall or may be set to turn on at a specific time. This allows them to absorb the sun’s rays throughout the day and switch on only when needed. To get the most out of your solar light, check for and remove the protective plastic wrapping from the face of the solar panel before using it.

Knowing what your solar lights can and cannot accomplish will allow you to get the most out of your solar lighting for many years to come.

Is it worthwhile to invest in solar-powered lights?

In compared to traditional lighting, solar street lighting is more cost effective because it saves enterprises, businesses, and governments money over time. You won’t have to replace the LED lighting as frequently, you’ll save money on trenching, and you won’t have to worry about purchasing costly permits. Solar lights are a low-cost, environmentally friendly alternative to regular power. Renewable energy sources have already shown to be less expensive than fossil fuel alternatives.

Is it possible to use solar security lights in the winter?

In the winter, all solar lights work as long as the solar panel receives enough sunlight to charge the batteries to the point where the light can function, assuming no malfunctions.

Is it true that rain ruins solar lights?

Yes, most well-made solar lights can be kept outside in the rain and still perform properly. While some models aren’t totally waterproof, most sealed solar lamps with an IP65 weatherproof rating can endure prolonged rain.

When buying solar lights, what should I check for?

In this buying guide, we’ll go over all of the important factors to think about when selecting a high-quality solar light. To make an informed decision, read the information thoroughly.


The first thing to think about when shopping for solar lights is what you’ll be utilizing them for. You can choose the best solar light accessible in the industry for this purpose.

For instance, if you require a security lamp, you can choose from a variety of LED solar security lamps. The hanging solar security lamp models, on the other hand, are ideal for both aesthetics and security.

Low-powered and cost-effective focus lamps are available for desk use, while garden path lamps, which are both attractive and functional, are available for path lighting.


The brightness offered by the solar lights is the next key factor to consider. The intensity of brightness supplied by solar light is usually measured in lumens. Varying solar lights are made to produce different amounts of lumens. Lumen levels might range from 12 to 1500 or higher. You must select the appropriate brightness level based on your needs. For your convenience, we’ve included some general principles below…

As a result, choose a solar lamp with a lumen rating that is more than your requirement.

Battery Type

Lithium ion, NiMH, lead acid, and NiCad batteries are the four types of batteries used in solar lighting. If you want lights that last a long time, a lithium-ion battery is the way to go. They work longer hours and have a larger capacity since they work for longer periods of time.

Lithium ion or lead acid batteries are the best options for powerful solar lighting. They have the greatest capacities in comparison to others. Lithium ion batteries are the most common choice since they have higher capacity while remaining compact. The lifespan of these batteries is roughly 2000 cycles, which is significantly longer than that of lead acid batteries. They are, nevertheless, more expensive than others.

Battery Capacity

You should also look at the battery capacity in addition to the type of battery. Battery capacities (the amount of energy stored in the batteries) are usually expressed in ampere-hour (Ah) or milliampere-hour (mAh) (mAh). You should buy a model with a high mAh capacity because it will last considerably longer.

Solar Panel Type and Efficiency

Solar panels are classified into three varieties based on the materials used and the design: monocrystalline, polycrystalline, and amorphous solar panels.

  • Monocrystalline Solar Panels – Monocrystalline panels are the most efficient in terms of cell efficiency and the amount of solar energy they can convert into electricity. Their efficiency ranges between 15% and 21%. These panels are pricey, despite their effectiveness.
  • Polycrystalline Solar Panels These panels have a 16 percent efficiency in energy conversion. Despite the fact that these solar panels are less efficient, they are inexpensive. Furthermore, the quality of their construction is excellent.
  • Thin-film solar panels are also known as amorphous solar panels. They are less expensive and have a 10% lower energy efficiency. It can even be lower in some circumstances.


This figure depicts how much electricity solar panels may generate in perfect climatic conditions. The importance of this component is usually determined by its efficiency, surrounding conditions, and construction material.

As a general guideline, you should select a solar light with a greater wattage output. Because panels with a higher wattage produce a brighter and more powerful light.

A solar panel with a 10W capacity, for example, may produce 10W of electricity each hour. It’s commonly expressed as a tenth of a watt hour. So, if the bulb has a higher brightness, you’ll need panels with a higher wattage rating.

Low-power lights that produce a few hundred lumens, for example, can be powered by solar panels ranging from 1 to 5 watts. Larger lights, on the other hand, necessitate solar panels rated at 10 to 20 watts.

Large solar panels can usually provide more wattage. This is because they have more solar panels on their roofs to harvest energy from the sun. High-powered outdoor flood lights sometimes include more solar panels for generating more electricity, as well as larger batteries.

Recharge Time and Run Time

Charge time is the amount of time it takes for solar lights to fully charge before they can be turned on. You’ll need to pick a device that can charge quickly even on a cloudy day. After the lights are mounted, the charge must be completed within a day or two.

When it comes to run time, it refers to the amount of time that solar lights can produce continuous illumination throughout the night. You must select a model that can brighten your home for an extended period of time. Keep in mind that the amount of solar energy a solar panel can capture during the day will limit the amount of time it can run.

Furthermore, both the charge time and the run time vary depending on the location and the time of year. We recommend going with a model that has a short charge time and a long run duration. The majority of the time, batteries can be fully charged during the day. Low-capacity batteries are ideal for locations with poor solar exposure. This will ensure that the battery has a better chance of being charged despite the reduced solar exposure.

Typically, a charge time of 6 to 7 hours is ideal, and a run time of 10 to 12 hours is appropriate.

Bulb Types

The light bulb, which is responsible for illuminating the region, is the most important component of solar light. Different types of solar bulbs, such as halogen, HID (high-density discharge), CFL, and LEDs, are used in solar lighting (diodes).

LED lights are the most suited and ideal alternative when it comes to solar lights. Because…

  • LED lights are more energy efficient than battery-powered lights since they use less energy to provide higher brightness.
  • Diodes or LED lights are more durable than conventional bulbs when it comes to durability.
  • They can last for up to 50000 hours. As a result, they will run without the need for maintenance.

Color Temperature

The hue or look of the light generated by the lamp is represented by this element. To put it another way, it depicts the color of light emitted by the bulb. Kelvins are the most common units of measurement (K). Both indoor and outdoor lights set the tone of the room or place, therefore it’s critical to consider these elements. Warmer colors (orange tinted color) are produced by bulbs with lower temperatures, akin to candles or incandescent lamps. Bulbs with a higher color temperature, such as LED diodes or daylight CFL bulbs, produce a colder, bluish color.

Coverage Angle and Length

The area covered by a solar lamp is critical, especially for a motion sensor solar security light. In these lights, a PIR motion sensor detects movement and instructs the light to turn on.

The light remains on as long as there is movement within its sensor’s range, and it goes off automatically when the person departs the sensor’s range. It is critical that you understand and select a top quality solar panel sensor with the appropriate coverage for this security feature and function. There are two aspects that go into determining the quality of a PIR Sensor.

The full angle in which the PIR sensor can cover the movement is referred to as this. In the image below, it is clearly represented. A coverage angle of at least 120 degrees would be excellent. The higher the temperature, the better, but anything above 170 degrees would be inconvenient since the light would turn on constantly.

The coverage distance is the next key factor to consider. While the sensor’s angle of coverage determines how far it can detect motion, the sensor’s distance of coverage indicates how far it can work. A reasonable length is at least 5 or 6 meters, but it is always better and desirable to go further. However, like with the larger wide-angle lens, going too far might be inconvenient because the light will turn on and off incessantly.