GE 20 → 60W Light Transformer, 220 → 240V, 12V

GE Lighting 12 V Dimmable Electronic Transformer

This 12 V Electronic Transformer comes in a brand new compact size design, which makes it the ideal choice for delicate lighting fixtures. Ideal applications for this GE Electronic Transformer are in offices, hospitals, shops, hotels, supermarkets, airports, subways and railway stations.

Approvals

CE, CB
Harmonic: IEC 61000-3-2
EMC: IEC 61547
EMI: CISPR15
Safety: IEC 61347-1, IEC 61347-2-3

Low Voltage Lighting Transformers

Dimming Methods (where applicable):
Leading Edge:
The control device is either a thyristor or triac which blocks power until they are switched on by the control signal. At that point the current flows almost instantaneously and continues to flow until the end of the half cycle of the mains waveform. When the signal reaches zero, the device turns off and no more current is passed until it is triggered again. Turning the power on and off in this manner averages out creating a constant intensity level and by altering the precise trigger point over a period of time the lamp can be dimmed.

Trailing Edge:
Since this method of dimming uses transistor technology it is not limited to just switching, therefore current can be controlled gradually. Transistors can be programmed to pass current at the start of each half cycle, and gradually switch off later. This will control the full amount of power reaching the lamp without the side effects of a step increase in current.