Summary of the content on the page No. 1
Safety warnings GE Consumer & Industrial
Lighting
The use of these products requires awareness of the following safety issues:
ConstantColor™ CMH™
Warning
• Risk of electric shock - isolate from power supply before changing lamp
Ceramic Metal Halide Lamps
• Strong magnetic fields may impair lamp performance
and worst case can lead to lamps shattering
Single Ended G8.5
Product Information
Use in enclosed fixtures to avoid the following:
• Risk of fire. Lamp technology
• A damaged lamp emits UV
Summary of the content on the page No. 2
Specification summary* Specification summary* 20W 35W 35W 70W 70W Ordering Information Photometric Characteristics 3000K 3000K Plus 4200K 3000K Plus 4200K Product code 39858 43237 26348 43274 26349 Wattage Colour Product Code Description 100 hrs Lumens lm 1650 3400 3150 6200 6000 CMH20/T/UVC/U/830/G8.5 Plus 20 3000K 39858 Typical Lumen change CMH35/T/UVC/U/830/G8.5 Plus 35 3000K 43273 with burning position lm 100-150 – vertical to horizontal CMH35/TC/UVC/U/842/G8.5 35 4200K 26348 Typical v
Summary of the content on the page No. 3
Lamp life Dimension Life survival graphs are shown for statistically representative batches of lamps operated under controlled nominal conditions with a 7 hours per start switching cycle. Declared lamp life is the median value, i.e. when 50% of lamps from a large sample batch would have failed. Lamp life in service is affected by a number of parameters, including supply voltage variation, 14.5 mm switching cycle, operating position, ballast impedance tolerance, luminaire design and mechanical
Summary of the content on the page No. 4
Lumen maintenance Special power distribution Lumen maintenance graphs show light output performance through life for statistically representative batches of lamps Spectral Power Distribution curves are given in the following diagram operated under controlled nominal conditions with a 7 hours per start switching cycle. A common characteristic for all metal halide lamps is a reduction in light output and a slight increase in power consumption through life. Consequently there is an economic life
Summary of the content on the page No. 5
Warm-up characteristics Lamp end of life conditions Typical Warm-up characteristics 120% During the warm-up period immediately after starting, The principal end-of-life failure mechanism for CMH™ lamps is arc tube leakage into the outer jacket. High operating 100% lamp temperature increases rapidly evaporating temperature inside the arc-tube causes metal halide dose material to gradually corrode through the ceramic arc tube wall, mercury and metal halide dose in the arc-tube. 80% eventually
Summary of the content on the page No. 6
UV and damage to sensitive materials Information on luminaire design The wall of the bulb, which is produced with specially developed ‘UV Control’ material, absorbs potentially harmful high energy UV radiation emitted by the ceramic arc-tube. Ballasts The use of UV control material together with an optically neutral front glass cover allows the lamp to significantly reduce the risk of discolouration or fading of products. When illuminating light-sensitive materials or at high light levels, add
Summary of the content on the page No. 7
Control gear and accessories Operating Characteristics 20W 20W 35W 70W 150W Mains Voltage V 220...240 220...240 220...240 220...240 220...240 Electronic Ballasts Mains Current A 0.19 0.10 0.18 0.33 0.69 Hz 50 50...60 50...60 50...60 50...60 A range of GE electronic ballasts have been introduced to complement the 20, 35, 70 and 150W ConstantColor™ Mains Frequency Ceramic Metal Halide lamps Power Factor > 0.55 > 0.95 > 0.95 > 0.95 > 0.95 Power controlled electronic ballasts suitable for operation
Summary of the content on the page No. 8
Superimposed ignitors Impulser ignitors Typical impulser ignitor circuit Typical superimposed ignitor circuit Phase Phase In many installations Ceramic Metal Halide lamps are Impulser type ignitors use the ballast winding as a pulse Ballast Ballast operated from a conventional magnetic ballast in transformer and can only be used with a matched ballast. conjunction with a superimposed ignitor. These ignitors Always check with the ballast and ignitor supplier that generate starting pulses indepe
