HID (xenon) light sources

HID stands for high-intensity discharge , a technical term for the electric arc that produces the light. The high intensity of the arc comes from metallic salts that are vapourised within the arc chamber. These lamps are formally known as gas-discharge burners, and produce more light for a given level of power consumption than ordinary tungsten and tungsten-halogen bulbs. Because of the increased amounts of light available from HID burners relative to halogen bulbs, HID headlamps producing a given beam pattern can be made smaller than halogen headlamps producing a comparable beam pattern. Alternatively, the larger size can be retained, in which case the xenon headlamp can produce a more robust beam pattern (Per Wikipedia).

Function of Batteries

NiMH

NiMH (Nickel Metal-Hydride) batteries are typically more cost effective than others. They can recharge for months or years and are a wise choice for thrifty spenders. As the charging voltage is basically constant when the battery is charging from an empty level, most of this power will be converted to chemical energy. However, when the battery is fully charged, most of the charging power will then be converted to heat

Li-ion

Li-ion batteries are lighter than equivalent NiMH batteries and many times much lighter. They also have a much higher energy density than similarly sized NiMH cells. However, Li-ion batteries are more expensive due to the Lithium compounds that are used in their construction and they must be designed with an electronic circuit to carefully monitor charging. The service life of a Li-ion cell is shorter than that of NiMH, and will provide approximately half the number of charge cycles as a NiMH battery (typically 500 charge cycles for Li-ion vs. 1000 for NiMH)

Function of Batteries

NiMH

Li-ion

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Function of Batteries

NiMH

Li-ion

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Save $50 with any Wheelchair Exercise Equipment. Mention coupon code AT0513WCE50