3D Printer Illumination

Hi@all
For my CTC printer I found the urgent requirement for an illumination. So I ordered some meters of these pretty cheap LED stripes from a china dealer (3€ for 5 meters, which are 300 LEDs!) and constructed a holder around these stripes.
The plate can be turned for optimum illumination or maintanance or making photos ;-) It is 30cm x 3.2cm, which gives room for 4 stripes á 18 LEDs.
The LEDs can be switched together to operate on 12V, 24V (my case) or even 48V.
I measured a power con