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.6.It only can be fit for 20W-105W halogen lamp beads Parameters: Input voltage: AC110V 50Hz / 60Hz Output voltage: AC12V Power factor: 0.99 Color:Black Rated power: 105W (maximum power) Light Source: 12V / 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/3.18 x 1.49 x 1.06Inch(L x W x H)Weight:77 g