After much research I bought this lamp incl. The appropriate ballast and Thermo Socket for the self-made transitional Terra my 2 Greek tortoises, because they can not go to the normal hibernation this year. There seems to be currently the best lamp for these reptiles. Since it is a combination of UV light and heat -BEIDES is important for Schildis- you here 2 lamps in one, in which case again the relatively high purchase price (all total approx. 150 euros) expects (well. ..what do you not everything for love animals ...). For me it is / it made sense, and lamp unit from one manufacturer to buy, I would venture no electrical experiments. To this end, I also lack the knowledge. The fitting together of the lamp and gear was therefore also very easy. The two turtles seem to love this lamp (if you want to interpret weggestreckte limbs as well being ..). The specified height must be observed in order not to burn the animals. The delivery was fast. I am happy.