Spectral Analysis of Mogul base Coralvue and Coralvue-Reeflux Metal Halide
Lamps
Since the previous reports on some Coralvue
lamps [1], I have received a new set of Coralvue lamps 400W 10000K, 14000K,
and 20000K lamps.Additionally Coralvue is introducing
a new set of lamps labeled Reeflux 10000K, the 250W and 400W mogul version
of this lamp are also included in this article.The lamps
are also tested with a new ballast – the Coralvue 400W electronic ballast.
These 5 new lamps were evaluated with differnt ballasts used to drive these
lamps. The lamps are listed in Table 1.As usual these
lamps were tested using the identical setup to all my previous tests, thus
allowing for direct comparison between the lamps.
Table 1: List of Single Ended Mogul lamps and
ballasts tests reported in this article
PFO-HQI
Taiwan - HQI
Standard Magnetic (M59)
IceCap (Electronic)
Blueline (Electronic)
Reef Fanatic (Electronic)
EVC (Electronic)
Pulse Start Coralvue (Electronic)
Coralvue Reeflux 250W 10000K
PFO-HQI (ANSI -M80)
Standard Magnetic (M58)
IceCap (Electronic)
Blueline (Electronic)
Reef Fanatic (Electronic)
EVC (Electronic)
1) Coralvue 10000K
Table 1: Coralvue 10000K performance on all ballasts
Ballast
Power
Watts
Input Volts
Input Amp
PPFD
CCT
Efficiency
PPFD/Watt
Magnetic
445
121.8
3.96
88
0
0.1978
Pulse
426
123.1
3.93
66.2
0
0.1554
HQI
508
121.7
5.57
102.5
0
0.2018
ReefFan
425
123.4
3.59
78.3
0
0.1842
EVC
419
122.8
3.58
84.9
0
0.2026
Icecap
412
122
3.47
76
0
0.1845
CoralVue
452
122.6
3.81
85.3
0
0.1887
Taiwan-HQI
465
122.9
4.04
93.8
0
0.2017
Blueline
384
123.2
3.23
75.9
0
0.1977
Figure 1: Coralvue 10000K Lamps on all ballasts
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2) Coralvue 14000K
Table 2: Coralvue 14000K performance on all ballasts
Ballast
Power
Watts
Input Volts
Input Amp
PPFD
CCT
Efficiency
PPFD/Watt
Magnetic
444
121.3
3.98
78.2
0
0.1761
Pulse
422
123
3.93
64
0
0.1517
HQI
517
121.1
5.52
96.6
0
0.1868
ReefFan
425
121.3
3.64
76.5
0
0.1800
EVC
418
121.3
3.58
75.4
0
0.1804
Icecap
421
120.5
3.59
79
0
0.1876
CoralVue
452
121.4
3.84
72.7
0
0.1608
Taiwan-HQI
456
121.9
3.97
78.9
0
0.1730
Blueline
383
121.1
3.3
68.3
0
0.1783
Figure 2: Coralvue 14000K Lamps on all ballasts
3) Coralvue 20000K
Table 3: Coralvue 20000K performance on all ballasts
Ballast
Power
Watts
Input Volts
Input Amp
PPFD
CCT
Efficiency
PPFD/Watt
Magnetic
425
122.5
3.82
110.3
0
0.2595
Pulse
405
123.1
3.89
106.1
0
0.2620
HQI
532
121.6
5.4
146.9
0
0.2761
ReefFan
423
121
3.63
108.7
0
0.2570
EVC
417
120.9
3.57
117.1
0
0.2808
Icecap
418
121.8
3.53
112.7
0
0.2696
CoralVue
447
120.6
3.82
125.2
0
0.2801
Taiwan-HQI
458
120.8
3.98
128.6
0
0.2808
Blueline
383
120.1
3.31
104
0
0.2715
Figure 3: Coralvue 20000K Lamps on all ballasts
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4) Coralvue Reeflux 400W 10000K
Table 4: Coralvue Reeflux 400W 10000K performance on all
ballasts
Ballast
Power
Watts
Input Volts
Input Amp
PPFD
CCT
Efficiency
PPFD/Watt
Magnetic
395
122
3.64
101.5
0
0.2570
HQI
535
121.6
5.22
170.9
0
0.3194
ReefFan
425
121.6
3.64
137.2
0
0.3228
EVC
418
121.7
3.57
130.3
0
0.3117
Icecap
417
121.6
3.52
129.2
0
0.3098
CoralVue
437
121.6
374
127.3
0
0.2913
Taiwan-HQI
458
122
4.02
143.8
0
0.3140
Blueline
381
122.6
3.22
115.5
0
0.3031
Figure 4: Coralvue Reeflux 400W 10000K Lamps
on all ballasts
5) Coralvue Reeflux 250W 10000K
Table 5: Coralvue Reeflux 250W 10000K performance
on all ballasts
Ballast
Power
Watts
Input Volts
Input Amp
PPFD
CCT
Efficiency
PPFD/Watt
Magnetic
245
121.4
2.63
70.6
17060
0.2882
Icecap
253
122.4
2.31
86.1
15953
0.3403
Blueline
252
122.2
2.15
82.2
14953
0.3262
HQI
335
122
2.95
113.9
10093
0.3400
ReefFan
257
122.2
2.21
94.1
12422
0.3661
EVC
272
122.2
2.32
90.17
10118
0.3315
Figure 5: Coralvue Reeflux 250W 10000K
Lamps on all ballasts
Discussion and Summary
The Coralvue 400W mogul 10000K, 14000K and 20000K all have a very similar
spectral plot with the typical large peak at 452 nm. One would expect them
to have different spectral shapes but as seen from the data this is not so.In
fact, the lamp with the most PAR in this category of lamps is the 20000K
lamp.Figure 6, shows a comparison of these 3 lamps when
running on the same ballast (the PFO-HQI ballast).
Figure 6: Spectral Plots of the Coralvue
400W mogul 10000K, 14000K, and 20000K on the PFO-HQI ballast.
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The Coralvue Reeflux 10000K is a rather interesting lamp, which should have
a more appealing look given that it has the large spike at 452 nm which is
typical of the “20000K” lamps but has additional peaks at 534,
588 and 670 nm which should help in “whitening” the appearance
of the lamp.The 250W lamp had a correlated color temperature
ranging from 10093K- 17060K depending on the ballast used.The
400W lamp has a very similar spectral profile but with different spectral
irradiance the software was unable to compute the CCT for this lamp.Figure
7 shows the spectral plots of these 2 lamps on “HQI” ballasts.
Figure 7: Spectral Plots of the Reeflux
400W and 250W mogul 10000K on the corresponding “HQI” ballasts
Acknowledgements
I would like to thank several people whose help made this study possible.
They were kind enough to provide us with lamps and ballasts for testing:
David from Coralvue, Patrick at PFO Lighting, Andy at IceCap Inc, Perry at
Sunlight Supply, Vince at Ocean Encounters, and Champion Lighting, Reef Fanatics.Finally,
I would like to thank Dr. Paul Walker of Penn State University for the use
of the spectroradiometer.
