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: 2WColor temperature: 3000K (Warm White)Dimensions: Dia 1.38 inch x L1.38 inch / Dia35 mm x L35 mmInput voltage: DC 10-30V / AC12VLumens: 200LM, CRI (Ra):> 80Beam angle: 120 degreesPackage Included: 4 x MR11 LED Bulb HRYSPN Warranty:60 days money back guarantee and 1 years replacement warranty. Any doubts and question, please kindly contact us.
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