If you google light alarm clock on amazon, there's a bunch of products that are light-based so it mimics the sun rising.
Here's one that's really highly rated: https://www.amazon.com/gp/product/B076H3PR8L/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B076H3PR8L&linkCode=as2&tag=larkgoals-20&linkId=69618d13435383b67c23a344a3b87a49
EDIT: Here is an Amazon page on this unit: https://www.amazon.com/Sunrise-Light-Digital-Alarm-Clock/dp/B076H3PR8L
All I can find is this page in India. (removed old link)
I have this one- https://www.amazon.com/gp/product/B076H3PR8L/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
I use the alarm function as well as mood lighting. The reviews are mixed but I've liked it for the past 3 years. The light starts to slowly turn on 30 minutes prior to when you have the audible alarm set, I usually wake up a minute or two before the audible alarm.