Seedlings want far less light than a mature plant, and this 0-10V dimmer lets you dial in the right level for each stage. It takes a HortiONE 420 or HortiONE 600 anywhere from 0 to 100 percent. Run it lower than full and the electricity bill drops with it.
Fitting is plug and play. The standard HortiONE connector means no rewiring, and the dimmer works with any 0-10V dimmable driver. It handles ambient temperatures up to 50C and carries a 2 year warranty.