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2. Dive light - Wikipedia

   en.wikipedia.org/wiki/Dive_light

   A few underwater lights have a focusing facility by which the beam angle can be adjusted. There are two ways this can be done, depending on the basic emission pattern of the light source. HID lights, which generally produce non-directional light, are usually focused by a reflector, which can be slid longitudinally over the light.

3. Landscape lighting - Wikipedia

   en.wikipedia.org/wiki/Landscape_lighting

   Conventionally generated and sourced electricity remains the most used source for landscape lighting in the early twenty-first century. With the combination of increasing demand for more efficient lighting, increasing availability of sustainable designs, global warming considerations, and aesthetic and safety concerns in garden and landscape design the methods and equipment of outdoor ...

4. Magnesium torch - Wikipedia

   en.wikipedia.org/wiki/Magnesium_torch

   A magnesium torch is a bright light source made from magnesium, which can burn underwater and in all weather conditions. They are used for emergency illumination for railroad applications. They were also used in the 1950s up to the early 1970s as a light source for scuba diving, and were featured occasionally in television shows. A relay of ...

5. The 8 Best Indoor Grow Lights to Help Your Plants ... - AOL

   www.aol.com/lifestyle/8-best-indoor-grow-lights...

   4. Root Farm All-Purpose LED Grow Light. Best for Starting Seeds. Starting plants from seed lets you get a jumpstart on the growing season, so your plants are ready to go in the ground as soon as ...

6. Lighting - Wikipedia

   en.wikipedia.org/wiki/Lighting

   The next major drop in price came about in the 1880s with the introduction of electric lighting in the form of arc lights for large space and street lighting, followed by incandescent light bulb-based utilities for indoor and outdoor lighting. [3] [5] Over time, electric lighting became ubiquitous in developed countries. [6]

7. Fishing light attractor - Wikipedia

   en.wikipedia.org/wiki/Fishing_light_attractor

   In this video, dozens of 15-18 inch speckled trout are attracted to a 1000 W green light mounted on a pier. A fishing light attractor is a fishing aid that uses lights attached to a structure above water or suspended underwater to attract fish and members of their food chain.