Feature:1.The use of imported brand-name electronic components, high-grade coil, having a high power factor; low temperature and so on.2.This product is mainly applicable to a variety of low-voltage 12V quartz G4 / G5.3 of (halogen) lamp beads, lamp; MR11 / MR16 quartz (halogen) lamp cup supporting lighting and so on.3.Common for Crystal Light; low-voltage lights; hanging line lamp; ceiling; bean gall lights; lighting grid; mirror front lamps; aisle lights; wall lamp and so on.4.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information; 5.If you have any questions about the item, please provide us the Manufacturing Part Number for checking, your profits will be guaranteed.Baby parameters:Input voltage: AC110V 50Hz / 60HzOutput voltage: AC12VPower factor: 0.99Color:Black Name:BQLZRRated power: 40W (maximum power)Light Source: 12V / 40W quartz (halogen) lamp beads, light bulbs, lamps Cup.Baby life: the normal use of more than 2 years.Wiring: red for AC110V input; white is AC12V output.Dimensions: 72 x 35 x 25mm/2.83 x 1.37 x 0.98Inch(L x W x H)Weight:58 g Note:1.40W refers to lamp Max Power,not transformer power.2, It can only use halogen lamp beads, can not use LED lights.3, This is the AC power,output voltage is AC12V, not DC bulbs.4, Lamp power can not exceed 40W.Package Include:1 x Electronic Transformer