This bulb is also available in a 4 pack www.homedepot.com/p/203231699
You can get this as a one pack at www.homedepot.com/p/203231700 and you can add three to your cart if you just need three bulbs.
No, it does not come in higher wattage.
These should not be used inside an oven. They are not rated for that extreme temperature. These are sometimes used in range hoods over a stove top, but you need to contact the range manufacturer for the best replacement if that is what you are seeking.
Thank you for your recent inquiry with The Home Depot. Unfortunately, we do not stock this item in a six pack online. However, we do offer alternate models that may suit your needs. For any other questions, please call us at HomeDepot.com Customer Service 800-430-3376. Thank you for shopping Home Depot.
This does not have a frosted top. The specs do note: Flood and Spot Color Temperature Bright White