Neurostimulation devices are gaining acceptance as an alternative therapy for certain chronic pain conditions. These devices have also been used in the management of neurological disorders like Parkinson’s disease and epilepsy. The currently available neurostimulators mainly focus on SCS, deep brain stimulation (DBS), vagus nerve stimulation (VNS), and sacral nerve stimulation (SNS).

Air conditioning is the process of improving air quality in a building or a vehicle by altering the humidity and temperature in the air into more favorable conditions. It involves all forms of technological cooling, heating, ventilation, or disinfection that modifies and enhances air quality.

IWBs are large displays that connect to a computer and show images and data. They allow users to drag, click, and copy items using a pen, finger, or stylus. The product is rapidly emerging as one of the most popular and successful technologies in classroom environments as it allows users to write or draw on surfaces, print images, and save or distribute documents over networks. This makes teaching easier and more interesting than using conventional whiteboards.

Power tools are used to create products with increased ease and convenience. The types of power tools include engine-driven power tools, electric power tools, and pneumatic power tools. Engine-driven power tools require steam engines to operate and are used by both professionals and individuals to cut hedges and wood. The power source for pneumatic power tool is compressed air from air compressors, which helps the tool to function effectively.

Centrifugal blowers deliver directional air flow by maximizing static pressure, making them optimum for spot cooling and air flow via a duct. Alternatively, their high suction can be utilized to hold an object in position. Also, their directed air flow can be used to move objects. The centrifugal force created by the forward curved vanes aligned in cylindrical form generates spiral flow almost perpendicular to the rotation axis. The scroll fixes the spiral flow in one direction and results in increased pressure. Thus, the blower limits the opening where the air is released and uni-directionally concentrates airflow.

A beginner microscope falls under the category of simple optical microscopes or magnifying toy microscopes and are used by students in primary and secondary schools. In comparison with compound microscopes, beginner microscopes are low power, low-cost instruments that have limited resolving power and application. The end-users of these microscopes are children in the age group of 6-12 years.

Medical lasers use focused light sources with precision to treat tissue. A laser light has a specific wavelength in a narrow beam, creating a high-intensity light. The use of lasers in the healthcare sector has proved to be a boon for both the semiconductor and medical industries. Lasers are used in medical treatment areas such as cosmetic dermatology for skin resurfacing, scar revision, tattoo removal, and laser hair removal; lithotripsy; ophthalmology; cancer treatment; dermatology; and general surgery for tissues.

Instrument transformers find application in AC systems where they are used to measure electrical quantities such as current, power, voltage, power factor, frequency, and energy. These devices are often used with protective relays incorporated into the network in the interests of protecting the electrical system.

Magnetic field sensors are devices used to sense and study the magnetic field around electrical devices, permanent magnets, and coils. These sensors are made of rotating sensor tip that measures transverse and longitudinal magnetic fields. Traditional magnetic field sensors facilitated navigation on oceans by sensing the magnetic poles of the Earth. Since then, the application of magnetic sensors has expanded to industrial use, for the detection of a magnetic field's strength, presence, and direction from soft magnets, permanent magnets, brain wave activity, vehicle disturbances, and fields generated from electric currents. Magnetic sensors are the primary navigation means for industrial control systems. The increasing demand for compact size, improved sensitivity, and compatibility to control systems has driven the need for magnetic field sensing technology.

The numerous benefits of LED lights have aided their growth traction among endusers. They are preferred over incandescent bulbs and compact fluorescent lamps (CFLs) as they are energy efficient (they consume almost 75% less energy than other bulbs) and have a long lifespan (which is pegged at 60,000 hours, compared to 1,500 hours of incandescent bulbs and 8,000 hours of CFLs). These features are the main reasons for the continued growth of LED lights, which are also known as green lighting systems.