Brightest whitest lights in halogen housings?

What’s the brightest/whitest headlights that I can put in halogen housing?

 

I use Phillips X-Treme Vision H4's. Much better than stock. Going strong for 2 years now.

 

Scroll down to the color temp vs output charts in this thread:
https://www.tacomaworld.com/threads/the-ultimate-headlight-upgrade-h4-not-led-or-hid.398066/

Note these charts only cover true performance bulbs. Fully blue coated bulbs to make light output significantly whiter reduce performance.

 

“Brightest” and whitest are are two different things. But if you want a nice compromise, the Philips Xtreme Vision +100 is a 400 hour bulb and is a nice upgrade over stock.

The GE Megalight +130 is a little brighter and whiter but will only give you about 150 hours of service.

I say this assuming you’re asking about a simple plug and play solution for H11 low beams.

 

Or are the 1st gens H4?

 

Yes, 1st gens are H4

 

Best performing low beam stock wattage H4 is the Philips Racing Vision +150, though the blue coating over the high beam reduces high beam performance. Best bulb without reduced high beam performance is the GE Xenon +120. You can check the color temps vs output referenced in the earlier thread. If you want whiter than those, you’ll need a fully coated bulb, which will be lower performance.

 

There’s a Philips +30 H4 on Amazon for like $4.97 per bulb. Hard to beat the price. Non-blue coated. I can’t comment on the performance, but I’m almost certain they’d be a step up from stock. And it’ll last much longer than the others Crash mentioned above (though not nearly as bright). But for the price, I’d certainly give them a shot.