Rayhoo Indoor Lighting Low Voltage Transformers LED Driver Adapter LED Light Bulb Transformer DC 12V Regulated Power Supply AC 110-240V for LED Light Bulbs (1.25A 15W) Model NO: CH12V-15W PRI:100-240V~50/60Hz 88mA 0.50 SEC: 12VDC ~eff 1.25A Tc: 80 Max/Ta: 40 Small volume. Length:2.76 inch Width: 1.66 inch High: 0.9 inch