If your working voltages is 100-240V,a transformer for 12V is needed.
We recommend to use led transformer or keep 1 or 2 halogen lamps to meet the Minimum power of tranditional transformer.
Specifications:
Base: MR11/GU4, Power: 2W
Color temperature: 6000K (Daylight White)
Dimensions: Dia 1.38 inch x L1.38 inch / Dia35 mm x L35 mm
Input voltage: DC 10-30V / AC12V
Lumens: 200LM, CRI (Ra):> 80
Beam angle: 120 degrees
Package Included: 4 x MR11 LED Bulb
Any doubts and question, please kindly contact us.