http://cgi.ebay.co.uk/150W-METAL-HALIDE-LI...1QQcmdZViewItem

thinking of using it on a 30l wave.

input welcome!

i know this post is a little old but for what its worth ive got one and think its awesome for the money.
although it does come with a huge transformer box thing that gets super hot.
i fear it will heat up a 30 litre tank very quicky though so i wouldnt recommend it TBH.

HTH