Review on Sylvania XtraVision 9007 - High Performance Halogen Headlight Bulb Set for High Beam, Low Beam, and Fog Lights - Pack of 2 Bulbs by John Bourgeois

It was in between (+30 high efficiency), Philips Vision Plus (+50 ultra high efficiency), Philips Xtreme Power (+80 mega high efficiency). Given the shorter lifespan of the high-efficiency bulbs, I chose these because I think they're the best value at $10 a pair. I can't justify paying $40 a pair for a Philips Xtreme Power when I change the lightbulbs every year. Anyway, I might try the Philips Vision Plus for $17 a pair next time. Now that this isn't the case, I see a definite improvement in clarity between the stock bulbs (annual Nissan Xterra) and these bulbs.