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You are here: Home Volume VI March 2007 Product Review: Spectral Analysis of CoralVue Reeflux 120000K and and Reef Optics Metal Halide Lamps

Product Review: Spectral Analysis of CoralVue Reeflux 120000K and and Reef Optics Metal Halide Lamps

By Sanjay Joshi, Ph.D. Posted Mar 14, 2007 08:00 PM Pomacanthus Publications, Inc.
Sanjay continues his testing, this time with CoralVue and Reef Optics metal halide lamps.

This article presents the spectral analysis of the six lamps and their corresponding ballasts as listed in Table 1. 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 Lamps Tested
Lamps Ballasts
CoralVue 400W Reeflux 12000K PFO-HQI
Taiwan - HQI
Standard Magnetic (M59)
IceCap (Electronic)
Blueline (Electronic)
Coralvue (Electronic)
EVC (Electronic)
CoralVue 250W Reeflux 12000K PFO-HQI
Standard Magnetic (M59)
IceCap (Electronic)
Blueline (Electronic)
Reef Fanatic (Electronic)
EVC (Electronic)
CoralVue 175W Reeflux 12000K Standard Magnetic (M57)
Icecap (Electronic)
EVC (Electronic)
Lumen General (Electronic)
Reef Optics 250W 10000K
Reef Optics 250W 14000K
Reef Optics 250W 20000K
PFO-HQI
Standard Magnetic (M59)
IceCap (Electronic)
Blueline (Electronic)
Reef Fanatic (Electronic)
EVC (Electronic)

CoralVue 400W Reeflux 12000K

Table 2: CoralVue 400W Reeflux 12000K performance on all ballasts
Ballast Power
Watts
Input
Volts
Input
Amp
PPFD CCT Efficiency
PPFD/Watt
Magnetic 422 121.6 3.87 96.2 NA 0.2280
Taiwan HQI 468 121.3 4.08 133.6 NA 0.2855
CoralVue 449 121.2 3.80 125.5 NA 0.2795
EVC 428 122.2 3.61 120.8 NA 0.2822
Icecap 426 122.1 3.58 116.0 NA 0.2723
Blueline 386 121.3 3.27 101.5 NA 0.2630
PFO-HQI 544 120.9 5.30 159.0 NA 0.2923
Figure1-Coralvue-400W-12K.gif

Figure 1: CoralVue 400W Reeflux 12000K Lamps on all ballasts

CoralVue 250W Reeflux 12000K

Table 3: CoralVue 250W Reeflux 12000K performance on all ballasts
Ballast Power
Watts
Input
Volts
Input
Amp
PPFD CCT Efficiency
PPFD/Watt
Magnetic 263 122.1 2.68 45.2 NA 0.1719
Reef Fanatic 262 122.3 2.23 52 NA 0.1985
EVC 269 122.5 2.29 54.4 NA 0.2022
Icecap 255 122.4 2.31 51.1 NA 0.2004
Blueline 255 122.9 2.17 48.1 NA 0.1886
PFO-HQI 335 122.3 2.93 74.7 NA 0.2230
Figure2-Coralvue-250W-12K.gif

Figure 2: CoralVue 250W Reeflux 12000K Lamps on all ballasts

CoralVue 175W Reeflux 12000K

Table 4: CoralVue 175W Reeflux 12000K performance on all ballasts
Ballast Power
Watts
Input
Volts
Input
Amp
PPFD CCT Efficiency
PPFD/Watt
EVC 187 123 1.6 43.8 NA 0.2342
Icecap 182 122.4 1.66 40.5 NA 0.2225
Magnetic 168 122.2 1.96 25.1 NA 0.1494
Lumen General 182 122.7 1.66 40.8 NA 0.2242
Figure3-Coralvue-175W-12K.gif

Figure 3: CoralVue 175W Reeflux 12000K Lamps on all ballasts

Reef Optics 250W 10000K

Table 5: Reef Optics 250W 10000K performance on all ballasts
Ballast Power
Watts
Input
Volts
Input
Amp
PPFD CCT Efficiency
PPFD/Watt
PFO-HQI 344 120.8 3.1 104 7746 0.3023
Blueline 256 121.3 2.19 74.8 14245 0.2922
Icecap 257 122 2.34 77.2 16007 0.3004
EVC 266 121.8 2.28 82.4 11050 0.3098
Reef Fanatic 263 121.5 2.26 79.3 12291 0.3015
Magnetic 293 121.8 2.8 74.2 12145 0.2532
Figure4-ReefOptics-250W-10K.gif

Figure 4: Reef Optics 250W 10000K Lamps on all ballasts

Reef Optics 250W 14000K

Table 6: Reef Optics 250W 14000K performance on all ballasts
Ballast Power
Watts
Input
Volts
Input
Amp
PPFD CCT Efficiency
PPFD/Watt
PFO-HQI 342 121.5 3.02 54.4 NA 0.1591
Blueline 256 122.5 2.18 38.9 NA 0.1520
Icecap 258 122.6 2.32 41.3 NA 0.1601
EVC 264 122.7 2.24 38.9 NA 0.1473
Reef Fanatic 262 122.8 2.23 44.2 NA 0.1687
Magnetic 296 121.4 2.82 45.9 NA 0.1551
Figure5-ReefOptics-250W-14K.gif

Figure 5: Reef Optics 250W 14000K Lamps on all ballasts

Reef Optics 250W 20000K

Table7: Reef Optics 250W 20000K performance on all ballasts
Ballast Power
Watts
Input
Volts
Input
Amp
PPFD CCT Efficiency
PPFD/Watt
Reef Fanatic 262 121.4 2.25 45.4 NA 0.1733
EVC 266 120.9 2.29 43.5 NA 0.1635
Icecap 258 121.4 2.34 44 NA 0.1705
Blueline 256 122.1 2.18 42.5 NA 0.1660
PFO-HQI 349 121.4 3.08 59.8 NA 0.1713
Magnetic 297 121.6 2.82 52.6 NA 0.1771
Figure6-ReefOptics-250W-20K.gif

Figure 6: Reef Optics 250W 20000K Lamps on all ballasts.

Conclusions and Discussion

As seen from the data, the Reef Optics 20000K and 14000K have very similar spectrums and 20000K has slightly better output.  Comparison to other lamps rated at 14000K and using a 250W HQI ballast shows that the PPFD range for these lamps on this ballast is from 109 to 64, and this lamp falls outside the range at the low end.  For the 250W 20000K Reef optics lamp, the range of PPFD on a HQI ballast for all other lamps is from 106-67, and this lamp also fall outside the range at the low end.  The Reef Optics 250W 10000K lamp is within the range of the other lamps tested with the HQI ballast but falls towards the high end of the bottom third.

The Coralvue 12000K lamps are also poor performers in terms of PPFD values especially the 250W lamp. The data shows that the Coralvue Reeflux 175W lamp performs only slightly lower than the 250W lamp.  The 400W Reflux 12000K will spectrally appear quite blue as shown by the spectral plot, with output very similar to lamps sold as 20000K.

There is basically nothing in these lamps that makes them stand out among the crowd of low cost, low output metal halide lamps that have recently swamped the hobby.  Additionally, its becoming quite clear that there is a large influx of lamps rated from 12000K-15000K that have very similar spectral characteristics of a blue lamp with the large spike at around 454 nm with lower output’s else where. A user preferring a blue look is probably better off with lamps being sold as 20000K.

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