The Magtech QM50-U48-1250-XP is a programmable 550- 950mA constant current LED driver. It is programmable 50mA at a time with Dip switches. The Magtech QM50-U48-1250-XP is 50w maximum and has a 10 - 48Vdc output. It is also 4 in 1 dimmable, ELV, Triac, 0-10V and PWM.