Since the previous articles on 250W single ended mogul based metal halide lamps [1,2], I have received several more 250W SE lamps from EVC, Happy Reefing, and
Agromax, and Coralvue. These 8 new lamps were evaluated with 6 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 250W Single Ended Mogul lamps and ballasts tested

EVC 10000K

Table 1: EVC 10000K performance on all ballasts

Figure 1: EVC 10000K Lamps on all ballasts

EVC 14000K

Table 2: EVC 14000K performance on all ballasts

Figure 2: EVC 14000K Lamps on all ballasts

EVC 20000K

Table 3: EVC 20000K performance on all ballasts

Figure 3: EVC 20000K Lamps on all ballasts

Happy Reefing (Avalon) 10000K

Table 4: HappyReefing (Avalon) 10000K performance on all ballasts

Figure 4: HappyReefing (Avalon) 10000K Lamps on all ballasts

Happy Reefing (Avalon) 14000K

Table 5: HappyReefing (Avalon) 14000K performance on all ballasts

Figure 5: HappyReefing (Avalon) 14000K Lamps on all ballasts

HappyReefing (Avalon) 20000K

Table 6: HappyReefing (Avalon) 20000K performance on all ballasts

Figure 6: HappyReefing (Avalon) 20000K Lamps on all ballasts

Agromax 20000K

Table 7: Agromax 20000K performance on all ballasts

Figure 7: Agromax 10000K Lamps on all ballasts

Coralvue 10000K

Table 7: Coralvue 10000K performance on all ballasts

Figure 8: Coralvue 10000K Lamps on all ballasts

References

1. Joshi, S. Spectral Analysis of 250W Mogul Lamps – Part I, Advanced Aquarist , July 2004
2. Joshi, S. Spectral Analysis of 250W Mogul Lamps – Part II, Advanced Aquarist , Aug. 2004.