Power consumption higher than expected

I bought the lamp to replace a 300W-uplight. Delivery was fast through Amazon.
The assembly also no problem-you should build from the top down the lamp.
At the floodlights / reading lamp is working properly. However, one can both not so far down fading like my old uplight and LEDs are nunmal bright. The color I would classify in neutral white because he has no yellowish proportion as the old floodlights. I have the lamp hung times at an ammeter and am come to the following conclusions:
- Uplight consumed undimmed 30W (LED power should be 20W)
- Reading lamp consumes undimmed 13W (LED power should be 5W)
- When switched off the lamp / transformer draws nearly constant 4W !!!

Consumed compared to my old floodlights of undimmed scarce 300W has been a very clear difference.
By "over-consumption" compared to the wattage of the LEDs is critical, I can live as one meistenst the dim light and therefore need fewer watts anyway. Two stars but I prefer the "quiescent current" when switched off from, so over the year get together a couple of current costs nothing - that could have been technically solved determines otherwise.
To replace the bulbs, I can not say anything-the covers of both lamps but can be unscrewed.

I'll keep the lamp anyway and provided with a disconnectable socket.