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The pipe is coated with a 99.3% specular reflective film and the distribution element at the end of the light pipe consists of a 4.6 m long diffusing radial film with an 87% visible transmittance. The light pipe introduces consistently illuminance levels ranging between 300 and 2,500 lux throughout the year at distances between 7.6 m to 10 m. [12]
Light pipes are tubes or cylinders of solid material used to guide light a short distance. In electronics, plastic light pipes are used to guide light from LEDs on a circuit board to the user interface surface. In buildings, light pipes are used to transfer illumination from outside the building to where it is needed inside. [citation needed]
This is an accepted version of this page This is the latest accepted revision, reviewed on 18 January 2025. This is a list of cannabis seed companies. Some of these supply only hempseed, that is, cultivars that produce low levels of THC (allowable levels are determined by local regulation). BSF Seeds Coopérative Centrale Des Producteurs De Semences De Chanvre, France, is the main supplier of ...
Bongs are an example of user-specific paraphernalia, in this case for the use of cannabis. A bong (also known as a water pipe) is a filtration device generally used for smoking cannabis, tobacco, or other herbal substances. [10] Bongs have been in use by the Hmong in Laos and Thailand, as well all over Africa, for centuries. [11]
Infrared lamps are also used for some night vision devices where visible light would be objectionable. Infrared lamp sources are used in certain scientific and industrial instrument for chemical analysis of liquids and gases; for example, the pollutant sulfur dioxide in air can be measured using its infrared absorption characteristics.
Light tube or light pipe may also refer to: Waveguide (optics), a device for light transport in photonic devices; Fluorescent lamp, a tubular light-emitting device; In professional wrestling, "light tube" refers to a fluorescent lamp used as a weapon in certain hardcore matches. LED tube lamps; ADAT Lightpipe, a protocol for digital audio signals
A chillum, or chilam, is a straight conical smoking pipe traditionally made of either clay or a soft stone (such as steatite or catlinite). It was used popularly in India in the eighteenth century and still often used to smoke marijuana. [1] [2] A small stone is often used as a stopper in the stem. The style of pipe spread to Africa, and has ...
Cultivation of cannabis is the production of cannabis infructescences ("buds" or "leaves"). Cultivation techniques for other purposes (such as hemp production) differ.. In the United States, all cannabis products in a regulated market must be grown in the state where they are sold because federal law continues to ban interstate cannabis sales.