The latest breakthrough in headlight bulb technology comes yet again from philips. this time around, they are pushing everything to the limit. Smaller globe size, hotter filament, better focal distance, all to put out the maximum amount of light legally allowed on the road. The new bulbs are rated as +80, the only bulb of its kind, with all other companies still only offering +50 upgrades. And lucky for us, they only make it in two sizes, H4 and H7. If you have 01-03 headlights, the H4 is the bulb for you.
If you want a clear bulb that delivers the highest lumen output possible AND gives you the whitest light, these bulbs are for you. Some defining features are the palladium coated tip, blue ring, and chrome base among others. If you are upgrading from stock bulbs, the difference is amazing. Even if you already have +50 bulbs, you will still see a difference. After installing new bulbs, always check to see that your headlamps are properly aimed and level with each other.
I drove by an hid equipped car and my lights were almost as bright. side by side with a stock civic, my lights were brighter and much whiter on the ground.
One problem is since they optimized the filament position for lo beam, the hi beam suffers as a result. I would say it is worse than stock, but not so bad that it becomes useless.
1. OEM stock H4 bulbs
2. Philips +50 VP (vision plus) upgrade
3. Philips +80 XP (xtreme power) upgrade