Thanks Stanley,
Yes, it is about 4.8watt/per US gallon. I think I need to cut down the lighting to slow down the plant growth a bit. Until now, everything is great, I can plant and have a nice growth of those plants that normally I won't dare trying i.e. E. Crineum, Toninas etc.
Some update, picture taken early this month. Wait till you see the tank at the end of this month!.
Best Regards