HID bulb

I've had my Tundra for a couple of years and it came with HID kit. Headlight bulb blew and I trying to figure out the color. I see the size on the bulb but those other numbers/letters did not pull up anything online. Also, shouldn't I get the same manufacturer since I have another bulb on opposite side that is still working? Picture of bulb attached.

 

What does the other side look like?? meaning what color...

 

And it's not factory. They were installed be the previous owner. If you are going to stay with them, most like the bulbs come in a set. 5000k is the most useable light. 6k is the one with the slightest blue tint. If they are not in a projector lens, I wouldn't even stay with them. Too much glare for other drivers.

 

That is a typical ebay HID bulb. Just buy a pair, either 5000k or 4300k. They will probably be around $10