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General Electric EHD 500W Halogen Light Bulb

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  • General Electric EHD 500W Halogen Light Bulb


Product Description

General Electric EHD 500 Watt 120 Volt Halogen Stage and Studio Lamp

GE has been a leading supplier to stage and studio users for many decades, and continues its pioneering work in the development of new and innovative light sources. The primary change in recent years has been the migration from glass to quartz as the standard bulb material. The higher melting point of quartz enables bulb envelopes to be reduced in size and the halogen fillings to be run at higher pressures, leading to smaller, lighter, brighter, more energy-efficient and more reliable lamps.

Quartz halogen lamps are designed to be operated within close voltage tolerances, and excessive voltage can lead to drastically shortened life, albeit with significantly higher light output. A second important variable is temperature. The tungsten halogen cycle does not operate properly below about 482F (250C) and quartz may begin to devitrify above about 1832F (1000C). Bulb envelopes should therefore be held in the range 482-1472F (250-800C). The contact pins are plated to ensure good electrical connection with the lampholder. However, at temperatures above 350°C, the plating may lose adhesion, leading to deterioration in contact and possibly local hot spots, arcing and consequent irreparable damage to both lamp and holder. Note that if there is evidence that this has occurred, the lampholder should be replaced before the next lamp is fitted, otherwise it is likely to fail prematurely for the same reason. Lamps normally fail by fusing of the filament. This is often followed by arcing, leading to very high currents which can cause the envelope and seals to fail and the lamp to shatter.

General Electric EHD Specifications:
Mfg. Ordering Code: 88624

Description: Q500CL/TP
ANSI Code: EHD
Wattage: 500 Watts
Voltage: 120 Volts
Bulb Shape: T4
Base: G9.5
Color Temperature: 2900 Kelvin
Filament: C-8
Average Life: 2000 Hours

Specifications

General Electric EHD Specifications:

Mfg. Ordering Code: 88624
Description: Q500CL/TP
ANSI Code: EHD
Wattage: 500 Watts
Voltage: 120 Volts
Bulb Shape: T4
Base: G9.5
Color Temperature: 2900 Kelvin
Filament: C-8
Average Life: 2000 Hours

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SKU:
EHD (88624)
Manufacturer:
Availability:
7 - 10 Business Days
Price:
$17.10


Quantity: