Hey Nobby sorry bout the confusion, Here in the states VHO is different from Power Compact Flourescent. Any way to further confuse things Power compacts for the standard retail trade here show watts consumed versus output in lumens compared to regular incandescent light bulbs.To clarify a popular power compact bulb with built in ballast and designed to screw into a standard light socket in place of a standard incandescent bulb consumes 14 watts of electricity but produces the lukmen level of a 75 watt incandescent light bulb, while lasting somewhat longer. Energy savings is the driving force here.
Typically the color temp of these bulbs is way on the red-green spectrum, very warm toned and not normally suited for reef aquarium use, however as a light to grow macro algae with they may be OK, tho most people use a lot more wattage even with the extra lumens factored in.
There is available here in the states a yard flood light available that has a PC bulb with a 6500K temp and 65w power consumption that sells for about $30 US. This would be a good start on say a 10g refugium, tho I am planning on using 2 on the 34x14" refugium portion of my sump. Hope this helps clarify some, if the light in question is fairly cheap give it a try at worst it wont be adequate and you can use it as a reading light.
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When considering courage in battle, one should remember that there are 2 sides to every conflict.
The heroism of the losing side rarely gets remembered
but we were all husbands and fathers, sons and bros
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