When it comes to solar lights there are several pros and recently are being improved to outweigh some of the cons. But in more demanding uses such as spot lights and task lighting, it really comes down to the needs and desires of the individual as well as their budget. The pros of solar spot lights are quite obvious such as free electricity and easy installation while the cons can be enough to be a deal breaker for some.
The benefits of solar lighting in general are very attractive and are the driver for manufacturers to continually improve on some of the problems that are preventing solar lights from taking off as the primary lighting option for every home. This includes the green factor of consuming a reusable energy source. This is essentially free electricity after the initial purchase price since solar energy allows you to light up your yard or garden while avoiding additional charges to your electricity bill.
Since solar spot lights do not require power lines they are very easy to install, and if you ever change your mind they are easy to reinstall at another location. Instead of having to dig up the yard to run cables and wires that are susceptible to damage, solar powered lights are individual units that can be staked into the ground or secured in their respective fashion as necessary. This means it is easy to uninstall and replaced at another location without the need to change the underlying infrastructure that is required by conventional wired lighting systems.
Another benefit to solar spot lights is the lighting level they provide. With new bulb and lighting technology the brightest can match the levels of a 40 watt incandescent spotlight which is not bad at all. Of course these brighter lights are pricier than other types of solar light models they can be very well worth it in the long run since it saves in energy costs.
The cons are also often consistent with other types of solar lights such as brightness and durability concerns. Specific to solar task lighting, garden solar spot lights will not match the standard 100 watt floodlights that are often used to illuminate objects like statues, arches or entryways that you want to prominently display at night. These solar lighting solutions also often are not quite on the same effectiveness level as traditionally wired lighting products. It might not be able to provide sufficient energy for maximum brightness during low light seasons such as the winter or on overcast days.