Reviewed By Dean H (Troy, MI) Reviewed for a 2009 Chevy Cobalt —11/4/2009 5:42 AM
The PlasmaGlow bulbs are a clear increase in brightness over the stock bulbs. No real change in coverage - though not expected. There is, however, a slight difference in observed brightness between the 2 bulbs. Considering the reasonable price I can live with the difference. I have ordered a set of high end PIAA bulbs for one of my other cars - will report findings.