Note: 

1.This transformer can not be used for LED lamps. This transformer can only be used on the 12V halogen lamp beads, cannot be used in car lights, motorcycle lamps, speakers, and so on other lighting and electric appliance.

The link of the halogen lamp Beads:https://www.officematics.com/item/Light-Beads-12V-Halogen-Lamp-Bead-G4-20w-35W-Low-pressure-Light-beads-G6-35-50W/32823061833.html?spm=2114.12010108.1000023.9.50622ec8CNwZTr

2.This transformer, can't test by the multimeter, otherwise can't measure the real data, and the measured data are inaccurate. It must connect the transformer to the 12v crystal lamp bead, ensure the electric light after to test.

Power : 60W,  105W, 120W, 160W

Size :

60W: 70*37*20mm

105W: 95*40*26mm

120W: 110*45*28mm

160W: 110 * 45 * 28mm (LWH)

Explanation : 220-240V (red and blue lines), output 12V (white and gray line).  Frequency 50 / 60Hz with automatic short circuit protection.

Purpose : IN terminal is input directly AC220V; OUT terminal as an output, direct 12V halogen light source.

Note : Constant voltage not constant current, the current will be automatically adjustable according to the load, please be sure not to overload the transformer, recommendations appropriate to increase the power of transformers, leave some power, then transformer and lamp bead service life can be extended.For example, when you use 6 pieces 20w lamp bead, 160w version is better than 120w version , it would be more durable and stable.

Product features
1. With the European CE certification.
2. There are multiple protection functions such as overload, short circuit, prevent the premature damage of abnormal condition
3. Low temperature (20 Celsius Degree) - can normal boot, is not affected by the environment.
4. Can be in 176-253 V range to work, not because of voltage fluctuation damaged products.
5. Safe low voltage 12 V output, will not cause a harm to personal.
6. The authentic high quality components and can work continuously > service life of 10000 hours.
7. The shell adopts PC engineering plastic, heat-resistant > 120 degrees Celsius, can be installed on the board.
8. Suitable for high-grade crystal, desk lamp, tablet and other low-pressure lamps.