saltn00b
Active Member
Lumenarc III
The Lumenarc III delivers an intense and more precise light distribution pattern over a significantly broader area at higher ceiling heights than conventional reflectors are capable of. It is constructed from lightweight specular aluminum and features 12 optically engineered facets surrounding the lamp. It also features an adjustable socket assembly that is capable of centering high wattage Metal Halide and High Pressure Sodium lamps within the reflector. It has the most even distribution and highest reflectivity of any reflector on the market. The hood dimensions are 19.5” x 19.5” x 8.5” tall. Optional A/C kit allows air cooling of the reflector and bulb through 2 4" duct attachments at either side of the reflector and includes glass.
Of all the reflectors tested, the Diamond Light was the most unique. This reflector uses multiple pieces of polished aluminum to create a reflector with twelve individual facets. This multifaceted design dispersed light from the 400 watt lamp very evenly. Also, positioning of the lamp within the reflector is adjustable. This adjustability allows the user to position the inner envelope of the metal halide lamp directly in the center of the reflector, amounting to the most symmetrical spread of any reflector analyzed during this study. The Diamond Light reflector obtained a peak intensity of 2400-2500 μmol/sec/m2. This reflector may not be suitable for everyone, given its rather large size.
Percent of PAR lost from 6” to 12” from the lamp
3x3' area 2x2' Area 1x1' Area
7% 18% 36%
This means that the Diamond Light reflector loses the least amount of light as one moves farther away from it.
References
(1) Joshi, S. 1998. Spectral Analysis of Metal Halide Lamps Used in the Reef Aquarium Hobby Part 1: New 400-watt Lamps, http://www.animalnetwork.com/fish2/a.../1/default.asp
(2) Joshi, S. and Morgan D. 1999. Spectral Analysis of Metal Halide Lamps Used in the Reef Aquarium Hobby Part II: Used 400-watt Lamps http://www.animalnetwork.com/fish2/a.../2/default.asp
(3) Joshi, S. and Morgan, D. 1999. Spectral Analysis of Metal Halide Lamps Used in the Reef Aquarium Hobby Part III: New and used 250-watt Lamps http://www.animalnetwork.com/fish2/a.../2/default.asp
(4) Joshi, S. and Morgan D., “Spectral Analysis of Metal Halide Lamps – Do Ballasts Make a Difference,” 2001 Annual Marine Fish and Reef USA, Fancy Publications.
(5) Joshi, S., “Spectral Analysis of Recent Metal Halide Lamps: Part IV– 10000K and 12000K lamps,” 2002 Annual Marine Fish and Reef USA, Fancy Publications.
(6) Joshi, S. and Marks, Timothy. 2002. Spectral Analysis of Recent Metal Halide Lamps and Ballasts: Part VI, http://www.advancedaquarist.com/issu...02/feature.htm
(7) Joshi, S. and Marks, Timothy. 2002. Spectral Analysis of 150W Double Ended Metal Halide Lamps and Ballasts http://www.advancedaquarist.com/issu...02/feature.htm
(8) Harker, R. “Reflecting on Lighting”, Aquarium Frontiers, Nov 1999. http://www.animalnetwork.com/fish2/a.../1/default.asp
The Lumenarc III delivers an intense and more precise light distribution pattern over a significantly broader area at higher ceiling heights than conventional reflectors are capable of. It is constructed from lightweight specular aluminum and features 12 optically engineered facets surrounding the lamp. It also features an adjustable socket assembly that is capable of centering high wattage Metal Halide and High Pressure Sodium lamps within the reflector. It has the most even distribution and highest reflectivity of any reflector on the market. The hood dimensions are 19.5” x 19.5” x 8.5” tall. Optional A/C kit allows air cooling of the reflector and bulb through 2 4" duct attachments at either side of the reflector and includes glass.
Of all the reflectors tested, the Diamond Light was the most unique. This reflector uses multiple pieces of polished aluminum to create a reflector with twelve individual facets. This multifaceted design dispersed light from the 400 watt lamp very evenly. Also, positioning of the lamp within the reflector is adjustable. This adjustability allows the user to position the inner envelope of the metal halide lamp directly in the center of the reflector, amounting to the most symmetrical spread of any reflector analyzed during this study. The Diamond Light reflector obtained a peak intensity of 2400-2500 μmol/sec/m2. This reflector may not be suitable for everyone, given its rather large size.
Percent of PAR lost from 6” to 12” from the lamp
3x3' area 2x2' Area 1x1' Area
7% 18% 36%
This means that the Diamond Light reflector loses the least amount of light as one moves farther away from it.
References
(1) Joshi, S. 1998. Spectral Analysis of Metal Halide Lamps Used in the Reef Aquarium Hobby Part 1: New 400-watt Lamps, http://www.animalnetwork.com/fish2/a.../1/default.asp
(2) Joshi, S. and Morgan D. 1999. Spectral Analysis of Metal Halide Lamps Used in the Reef Aquarium Hobby Part II: Used 400-watt Lamps http://www.animalnetwork.com/fish2/a.../2/default.asp
(3) Joshi, S. and Morgan, D. 1999. Spectral Analysis of Metal Halide Lamps Used in the Reef Aquarium Hobby Part III: New and used 250-watt Lamps http://www.animalnetwork.com/fish2/a.../2/default.asp
(4) Joshi, S. and Morgan D., “Spectral Analysis of Metal Halide Lamps – Do Ballasts Make a Difference,” 2001 Annual Marine Fish and Reef USA, Fancy Publications.
(5) Joshi, S., “Spectral Analysis of Recent Metal Halide Lamps: Part IV– 10000K and 12000K lamps,” 2002 Annual Marine Fish and Reef USA, Fancy Publications.
(6) Joshi, S. and Marks, Timothy. 2002. Spectral Analysis of Recent Metal Halide Lamps and Ballasts: Part VI, http://www.advancedaquarist.com/issu...02/feature.htm
(7) Joshi, S. and Marks, Timothy. 2002. Spectral Analysis of 150W Double Ended Metal Halide Lamps and Ballasts http://www.advancedaquarist.com/issu...02/feature.htm
(8) Harker, R. “Reflecting on Lighting”, Aquarium Frontiers, Nov 1999. http://www.animalnetwork.com/fish2/a.../1/default.asp