Sanjay Joshi
Recent Content
Product Review: Spectral Analysis of 250W Metal Halide Lamps: Giesemann, Krystal Star, South Pacific Sunlight, BLV, Phoenix Electric Company
Since the last
report on 250W metal halide lamps, I have
received several new lamps. These 7 new mogul base lamps and 4 double
ended lamps were evaluated with 6 ballasts used to drive these lamps.…
Product Review: Analyzing Reflectors: Part V
Since the last set of reflector tests in 2004, I have received
five new reflectors for various metal halide lamps. This article
presents test results on the fixtures/reflectors available for
these lamps.…
Product Review: Spectral Analysis of 175W Metal Halide
Introduction
In a previous article I presented
the spectral data of 11 175W Metal halide ballasts. This article
continues with the test results of 11 more 175W lamps as measured
using the same basic setup and distances used in all my prior
tests, thus allowing for a direct comparison with previous data
(now available on the web at
http://www.reeflightinginfo.arvixe.com/…
Spectral Analysis of 175W Metal Halide Lamps – Part I
Introduction
Over the last few years I have received several requests to test and report on the 175W Metal Halide lamps. These lamps are quite popular with aquarists and have been available in the hobby for a long time.…
Underwater Light Field and its Comparison to Metal Halide Lighting
Over the past few years of testing MH lamps used in the hobby and attempting to characterize the light over the aquariums, one question that has often been at the back of my mind has been – How does the light over our aquariums compare to that on a natural reef?…
Spectral Analysis of XM 15000K Metal Halide Lamps
Since their introduction in the last few months, the XM 15000K metal halide lamps have generated a lot of interest. This article presents a complete analysis of these lamps. The lamps and ballasts used for the evaluation are presented in Table 1 below.…
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.…
Spectral Analysis of 250W Mogul base Metal Halide Lamps – PART III: EVC, Happy Reefkeeping, Agromax and Coralvue
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.…
Spectral Analysis of 250 Watt Double Ended Metal Halide Lamps and Ballasts: EVC, Happy Reefing, IceCap, AB, and Coralvue
Since the previous two articles [1,2] on 250W Double Ended metal
halide lamps, I have received several more 250W DE lamps, and some more
250W Electronic ballasts – Blueline, Reef Fanatic, and EVC.…