Electronic transformer for halogen light bulb Applications: Ceiling light, spotlight, mirror front lamp, porch light, wall lamp, etc Wiring: Red cable for 220V AC power, white cable for 12V output end The general lifespan of this electronic transformer is 2 years and above. Description: Power Factor: 0.98 Output Power: 50W Input Voltage: AC 220V, 50 / 60Hz Output Voltage: AC 12V, 30Khz Max. Case Temperature: 70 Celsius Max. Ambient Temperature: 30 Celsius Size: Approx. 2.2 x 1.3 x 0.8 inch (L x W x H) Cable Length: Approx. 4 inch Material: Plastic Housing Color: Black Package includes: 3 x Electronic Transformer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.