I have 05 OEM Denali headlights in my sierra. Both of the bulbs in my housings are 9005, both high and low beams. Low beams in Denali's are the ones with the little magnifying glass thing, right? So if I bought a 9005 HID conversion kit off eBay, would they work with the factory denali housing for low beams? A 9005 kit will work for high beams if not low beams right?

 

if both bulbs are 9005.... then they "should" work. not certain. wait for other members to comment

 

Also, I've seen some newer HID kits. They are supposed to be "digital", and the ballast's are alot smaller. About as tall and wide as a creadit card, and only as thick as a AAA battery I think. I'd much rather have the smaller, more compact size for easier mounting, but if it's not a tested and proven reliable system, I don't want it. The digital ones are supposed to "turn-on" or "warm-up" faster than the analog kits. Would you guys go for the digital? I want something proven reliable and not be a "guinea pig" for new technology.

 

They will fit. But are you sure your low beams aren't 9006?

check this out..

http://www.sylvania.com/ConsumerProd...lacementGuide/

 

Yea, normal sierra/yukon lights are 9006 for low beams. But on my denali headlights, they're 9005, and have an adapter harness. 9005 plugs have 2 grooves and slots. 9006 have 1 groove and slot. This is so you can't plug the wrong plug into the wrong bulb. But, on my denali headlights, all bulbs are 9005, hence the adapter harness. The harness is basically a 9006 female connector with about 4-5" of wire to a 9005 male plug.

 

ahh i see. well the hids off ebay should fit just fine.

 

That's what I was hopin for. I knew what bulbs I needed, but I wasn't sure if HID's wold work in my low beams, because the denali's have those magnifying glass projector things! Whatever they're called. But, if they don't fit, I can just use them as high beams! 6000K is about as white as you can go without being very blue, right? Also, any opinions on the whole digital vs. analog thing?

 

Here's the kit I'm looking at. 6K:
http://cgi.ebay.com/ebaymotors/SLIM-...spagenameZWDVW
Here's some info I found on digital ballast's.

The days of the old humming, magnetic core&coil-type HID Ballasts have come to an end. The Digital (electronic) Ballast is the latest in HID Ballast innovation. The Digital Ballasts are more efficient, quieter, cooler and softer/easier on the HID bulb all the while allowing for a much smaller and neater package.

The Digital Ballasts do not have any of the usual transformers or capacitors; instead these ballasts have electronic circuitry doing the same job, only much more efficiently using significantly less current. The Digital Ballast have the capability of self diagnostic and reset, including specific protection circuits to detect various lamp-and ballast-fault conditions allowing to safely shutdown or reset the ballast. When an analog ballast fires the HID bulb it sends full power to the cold HID bulb. Over time, this shortens the HID bulb life and reduces the output and life span of the increases the power over the next few years. A digital ballast sends less pwer for the first few seconds until the HID bulb has reached full brightness, then it sends full power. This is also known as soft starting, which minimizes the damage to the HID bulb and increases its life. After one year of use the usable light coming from HID bulb being used in the coil type ballast would have lost over 10% more usable light over the same period of time.

 

I cant help with the ballast but yes 6000K is as white as you can go before blue.

 

Also, the ones I linked to are 35 watt. I found some 55 watt, but they're $90 more! Are the 55 watt light worth the extra $$$? I heard the 55 watt were alot brighter than 35 watt?