Streamlight Glossary of Terms Anodizing An electro-chemical coating for aluminum. Hard, durable and attractive. Anodized parts are highly corrosion resistant. Beam Candlepower Also called Peak Beam Candlepower. Measurement of the brightest spot in a focused beam. An indication of the maximum intensity of the flashlight. The "hot spot" is equal in brightness to the number of "candles" required to produce the same illumination. Bi-Pin Bulb A bulb with two contact pins that plug into a socket allowing easy replacement. Halogen and Xenon Bulbs Flashlights using bulbs filled with these gases are recognized by their extreme brilliance and white light when compared to ordinary bulbs. These bulbs are generally more efficient than ordinary bulbs and may last longer. High Temperature Lens Typically made of borosilicate glass which has low thermal expansion characteristics. Easy to clean, resists scratching, and has a good shock resistance when properly mounted. Lead Acid Rechargeable battery chemistry used in the Vulcan and LiteBox. Unlike automotive batteries, Streamlight lead acid batteries will not spill acid. Streamlight batteries are sealed and do not contain free liquid. LED (Light Emitting Diode) A high-intensity "solid state" bulb which lasts up to 100,000 hours. Able to run for very long periods of time on very little power (see individual lights for specific run times). Available in various colors including Ultraviolet. Lithium Disposable batteries using lithium chemistry are gaining in popularity because of their light weight, high energy density, and shelf life of ten years. Lithium ion rechargeable batteries, as used in the Streamlight Strion, combine high capacity with small size and light weight. Lumen As used in reference to flashlights, it refers to the total amount of light radiated by the bare lamp, the LED, or the flashlight. Because this measurement does not consider the focusing efficiency of the reflector, it does not indicate how "bright" the focused beam will appear. A flood lamp with a very wide dim appearing pattern can have the same lumen rating as a very tightly focused intensely bright spot lamp assembly. Lumen ratings cannot be converted to beam candlepower. Machined Aluminum Flashlight components made from this material are lighweight, durable and can be held to tight manufacturing tolerances for superior performance in precision assemblies. Nickel Cadmium (abbreviated NiCad) The most common rechargeable battery used in Streamlight products. It is the most rugged rechargeable technology and provides the highest performance/cost ratio. Must be recycled at end of life. Non-Conductive Will not conduct electricity. Flashlights made with non-conductive case materials protect against electric shock should the flashlight touch an electrical source. O-Ring Used as a gasket to seal the flashlight case against dust and moisture. Polycarbonate Clear, tough, shatterproof, virtually unbreakable polymer used to make the lens in most Streamlight flashlights. Often hard coated for abrasion resistance. Pre-Focused Lamp Module Lamp and reflector furnished and replaced as a unit. Permanently adjusted at the factory for optimum focus. Reflector Surrounds the lamp and directs and focuses the light rays in one direction. Streamlight reflectors are computer designed for optimum performance. UL Underwriters Laboratories, Inc. is a thrid-party testing organization that approves products for compliance to electrical specifications and for use in specified hazardous locations. Volt Unit of electrical potential. The potential difference between two points in an electrical system is called the voltage between those points. Watt Unit of power. Electrical power can be calculated by multiplying voltage times amperage.