40w led driver single output switching power supply lpf 40d series mean well lpf 40d 24 a 40w 24v led driver that has a full range universal ac input and a built in 3 in 1 dimming function 1 to10v dc pwm or resistor an ip67 rating means that this driver is suitable for use both indoors and outdoors in dry and damp locations typical applications for this led driver are led lighting systems and portable signage lpf 40d 24 mean well 24v 40w led driver power supply