Is it the set left and right?
yes, it comes for a pair including left and right sides.
Are lenses glass?
No, it's Polycarbonate plastic.
How many bulbs do I need? 8 @ 9006? Doesn’t specify side marks & blinkers? Just wanna order the right stuff once. Thanks
Hi, The product is not included. You need to use the original bulb. Or you can buy it for those types.
What is the warranty on these?
It's a 1-year warranty.
Will this fit a 2003 Silverado that not a HD
Yes, It's fit the 2003 Silverado 1500/2500/3500. For the detail, please check the "Fitment" table to make sure your car model is fitted.