Ballasts are power supplies or transformers for fluorescent lamps, light sources that consist of a glass tube filled with argon, neon, or other inert gas. When ballasts supply electrical current, the ...

The invisible UV is converted to visible light by a coating on the inside of the tube. Another distinguishing feature of CFLs ...

The most important feature of a light box is the light. Make sure that it filters harmful ultraviolet (UV) light. Don’t use light boxes meant for skin conditions, tanning beds, or sun lamps.

We cannot see ultraviolet (UV) light but it can have hazardous effects on the human body. Ultraviolet light in sunlight can cause the skin to tan or burn. Fluorescent substances are used in energy ...

Some UV radiation is essential for our wellbeing, and the sun's rays provide warmth and light. But balance is key as UV exposure can also cause dangerous skin damage. We need to control our ...

Largely owing to these achievements, it is now possible to generate white light using LEDs. The three most popular approaches are shown in Fig. 2a.These are a blue LED with yellow phosphors; an ...

Best overall light therapy lamp At the time testing was done, we found the Verilux HappyLight Luxe to be the best overall light therapy lamp. It has a simple design, four brightness settings ...

Anyone familiar with optics labs is familiar with the extremes of light coherence: laser beams are highly coherent, producing clear interference patterns used for precise applications like atomic ...

While there isn't any solid research backing the use of blue light lenses for eye health, many people turn to blue light-blocking glasses to effectively filter blue light, reduce light exposure ...

We need light to see. Light can come from many different sources, such as the Sun, stars, torches, lamps and candles. Some sources of light are so powerful that they can damage our eyes if we ...

Talk about a bright idea! Under-cabinet lighting illuminates kitchen countertops for safer, more functional food prep and brighter small-appliance storage. It’s also an easy and effective way to ...

A good pair of sunglasses to protect eyes should not only offer full UV protection ... a gradient tint for shifting weather or lower light and driving, as it protects your eyes while allowing ...