Looking to replace the super white MTEC bulbs in your car? Read on to discover the similarities and differences between the MTEC W21/5W (580) and the MTEC 582 (W21W). MTEC W21/5W (580) Super White Xenon Effect Bulb With a colour temperature of 7000k, the MTEC W21/5W (580) Super White Xenon Effect Bulb is made from natural glass. Filled with inert...
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