Definitions

Lumens

The lumen (symbol: lm) is the SI unit of luminous flux, a measure of the power of light perceived by the human eye.


Beam Spread

The beam divergence of an electromagnetic beam is an angular measure of the increase in beam diameter with distance from the optical aperture or antenna aperture from which the electromagnetic beam emerges.


Wattage

The watt is a derived unit of power in the International System of Units (SI). Electric power is defined as the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt.


Voltage

The voltage between two points is a short Name for the electrical force that would drive an electric current between those points. Specifically, voltage is equal to energy per unit charge.


Heat Sink

A heat sink is a colloquial term for a component or assembly that efficiently transfers heat generated within a solid material to a fluid medium, such as air or a liquid. Heat sinks are primarily used to remove unwanted heat from a device to keep it from overheating.


LED

A light-emitting diode (LED) is a semiconductor light source.


UV Rating

Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV


Color temperature

The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of comparable hue to that light source.


ETL

ETL is a mark provided by Intertek and ETL Semko. Intertek (www.intertek-etlsemko.com) is a global leader in testing inspection and certification services. They are a Nationally Recognized Testing Laboratory and tests products to UL, CSA and CE standards.

A product bearing the ETL Listed Mark is determined to have met the requirements of prescribed product safety standards. 

Moreover, the mark indicates that the manufacturer’s production site conforms to a range of compliance measures and is 

subject to periodic follow-up inspections to verify continued conformance.

An ETL Listed mark with both “us” and “c” identifiers signifies that the product bearing the mark complies with both UL and CSA product safety standards. If it bears just the “us” identifier, it has been tested and deemed compliant to UL. product safety standards only. An ETL Listed mark with a “c” identifier means the product bearing it complies with CSA product safety standards only.


What is ENERGY STAR?

ENERGY STAR is the trusted, government-backed symbol for energy efficiency helping us all save money and protect the environment through energy-efficient products and practices.

The ENERGY STAR label was established to:

Reduce greenhouse gas emissions and other pollutants caused by the inefficient use of energy; and

Make it easy for consumers to identify and purchase energy-efficient products that offer savings on energy bills without sacrificing performance, features, and comfort.

How Does EPA Choose which Products Earn the Label?

Products can earn the ENERGY STAR label by meeting the energy efficiency requirements set forth in ENERGY STAR product specifications.


304 Stainless Steel

What is Type 304 Stainless Steel?

Type 304 (18-8) is an austenitic steel possessing a minimum of 18% chromium and 8% nickel, combined with a maximum of 0.08% carbon. It is a nonmagnetic steel which cannot be hardened by heat treatment, but instead. must be cold worked to obtain higher tensile strengths.

    The 18% minimum chromium content provides corrosion and oxidation resistance. The alloy's metallurgical characteristics are established primarily by the nickel content (8% mm.), which also extends resistance to corrosion caused by reducing chemicals. Carbon, a necessity of mixed benefit, is held at a level (0.08% max.) that is satisfactory for most service applications. 

     The stainless alloy resists most oxidizing acids and can withstand all ordinary rusting. Because of its ability to withstand the corrosive action of various acids found in fruits, meats, milk, and vegetables, Type 304 is used for sinks, tabletops, coffee urns, stoves, refrigerators, milk and cream dispensers, and steam tables. It is also used in numerous other utensils such as cooking appliances, pots, pans, and flatware.

     Type 304 is especially suited for all types of dairy equipment - milking machines, containers,
homogenizers, sterilizers, and storage and hauling tanks, including piping, valves, milk trucks and railroad cars. This 18-8 alloy is equally serviceable in the brewing industry where it is used in pipelines, yeast pans, fermentation vats, storage and railway cars, etc. The citrus and fruit juice industry also uses Type 304 for all their handling, crushing, preparation, storage and hauling equipment.

     In those food processing applications such as in mills, bakeries, and slaughter and packing houses, all metal equipment exposed to animal and vegetable oils, fats, and acids is manufactured from Type 304. 
Grade 304 is the standard "18/8" stainless that you will probably see in your pans and cookery tools.
  
 
These are some of its characteristics:
- Forming and welding properties
- Corrosion/ oxidation resistance thanks to the chromium content
- Deep drawing quality
- Excellent toughness, even down to cryonegic temperatures which are defined as very low temperatures
- Low temperature properties responding well to hardening by cold working
- Ease of cleaning, ease of fabrication, beauty of appearance