grow-lamp-rack (connectors) for indoor plants

Here's a mini rack for a grow-lamp to help indoor kitchen-plants to evolve :-) Due to the lack of a sunny-side window and the general amount of sun in northern germany X-D
I use a Romberg "Aromatic" for the plants ("Mia" works too), an E27-lamp mount from "Conrad", some small wooden planks (11x5 mm) and a red/blue-led-bulb to speed up my basil-income ^^
Lengths for the wood-pieces are: top - 4.2 cm and 32 cm; sides - 30 cm (75° angles at the bottom). I fixed the mount with 2 M2 screws i had ly