I placed my order spoke for lighting and it was delivered in two batches. The first one 300mm lamp, the second six lamps 500mm (two packets of three lamps). The lamps themselves are working well but unfortunately the book Transformer with 300mm lamp wasnt the same as those received with 500mm lamps.
The 300mm lamp had a plug / transformer in single block but those 500mmm lamps were separated (the plugs separating transformers by a dune over thirty centimeters. The installation is provided in the same room this difference created problems