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HID lamps are used in high-performance bicycle headlamps, as well as flashlights and other portable lights, because they produce a great amount of light per unit of power. As the HID lights use less than half the power of an equivalent tungsten-halogen light, a significantly smaller and lighter-weight power supply can be used. HID lamps have ...
It is a type of high-intensity discharge (HID) gas discharge lamp. [1] Developed in the 1960s, they are similar to mercury vapor lamps, [1] but contain additional metal halide compounds in the quartz arc tube, which improve the efficiency and color rendition of the light. The most common metal halide compound used is sodium iodide. Once the arc ...
Headlight restoration or plastic headlight restoration is the act of restoring aged headlight lenses that have become discolored or dull due the original factory UV protective coating degrading primarily due to UV light and other environmental factors such as road debris impact (stones, sand, etc.) rain, and exposure to caustic chemicals.
The girdling wire left on during the growing season can prevent water and nutrients from traveling past the tight holiday light circular wires. Be sure to check your holiday lights often ...
Exterior cleaning draws on aspects of environmental care, architecture preservation, and public safety, in addition to traditional cleaning. In some jurisdictions, exterior cleaners must be licensed to practice, e.g., window cleaners require a license to operate in Scotland. [1] [2]
The French yellow-light mandate was based on observations by the French Academy of Sciences in 1934, when the academy recorded that the selective yellow light was less dazzling than white light and that the light diffused less in fog than green or blue lights. [citation needed] Yellow light was obtained by dint of yellow glass for the headlight ...
A flicker light bulb, flicker flame light bulb or flicker glow lamp is a gas-discharge lamp which produces light by ionizing a gas, usually neon mixed with helium and a small amount of nitrogen gas, by an electric current passing through two flame shaped electrode screens coated with partially decomposed barium azide. The ionized gas moves ...
7133.2 - building exterior cleaner: "Building exterior cleaners remove dirt and litter from a building's exterior, as well as perform restoration tasks. They ensure the cleaning methods are compliant with safety regulations, and monitor the exteriors to ensure they are in proper condition."