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 or G5.3 of (halogen) lamp beads, lamp MR11 or 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.6.It only can be fit for 20W-105W halogen lamp beads Parameters: Input voltage: AC110V 50Hz or 60Hz Output voltage: AC12V Power factor: 0.99 Color:Black Rated power: 105W (maximum power) Light Source: 12V or 105W quartz (halogen) lamp beads, light bulbs, lamps Cup.Life: the normal use of more than 2 years.Wiring: red for AC110V input white is AC12V output. Dimensions: 81 x 38 x 27mm or 3.18 x 1.49 x 1.06Inch(L x W x H)Weight:77 g