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Re: Mercury Vapour Lamp?



>I have seen a lot of articles on fluorescent and metal halide lamps.
>Does anyone have any info on mercury vapour (MV) lamp or can provide me
>a URL
>where I can read about it?
>What's the difference between a typical MV bulb compared to the deluxe
>or
>super deluxe?

First of all, the better MV lamps I've ever seen are those by OSRAM. The osram bulbs are used by Dupla, which is a great reference :-)

The difference between the different references among the MV bulbs are :

- The HQL Super DE LUXE gives 3400 lumen for 80 watts and 5700 lumen for 125 watts. Both have a color temperature of 3000K which is quite yellow. They have an RA of 60 (the sun = 100)

- The HQL DE Luxe gives 4000 lumen for 80 watts and 6500 lumen for 125 watts. Both have a color temperature of 3200K which is a little less yellow than the SUPER DE LUXE. RA = 57

- The HQL Standard gives 3800 lumen for 80 watts and 6300 lumen for 125 watts. Both have a color temperature of respectively 4100K and 4000K which is a not really yellow. RA = 50

The greatest is the temperature of colors, the color is more white (better).
The greatest is the RA, the colors are better seen.

I suggest you to use the HQL Standard by OSRAM. 
>
>Thanks and Happy New Year..:-)


Happy new year to you and for everybody of the Aquatic Plant Digest


JP

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