I recently bought the donut-shaped Phillips wake-up light and I really like it, though it is pretty expensive and not as slick as a "new tech" product like this Casper light.

My mom got me a Philips wakeup light about ten years ago. If you accidentally turn it on full when your eyes are adjusted to darkness, it's like being in the shade and suddenly getting a big mirror of sunlight beamed into your eyes. (Note that it's obviously not an issue during normal use; the brightness is the whole point and works as intended to simulate light levels of sunup in an otherwise unlit room.) I don't know any other light that gets that bright, so to sibling comments that recommend regular lights, that's definitely not what GP is asking ("lots of these bulbs is they aren't very bright" and that's already talking about wakeup lights, not just any lights).

For me personally, it made it easier to get out of bed, but it didn't make me feel more awake. It lessened the struggle, but I (not a blind test or hard data) feel like it sometimes made me feel less awake all morning. This made me pay more attention to sleeping multiples of 1.5 hours instead of just any amount, which helped a bit, and which I still do today (conversely, I haven't used the light in years, though I was recently thinking about it again).

Overall, I would recommend to try it, but it was pretty expensive so having 14 days (as one does when buying online in the EU) to return it and get your money back is recommendable as well.

Edit: this looks like a second iteration of the model I had: https://ic.tweakimg.net/ext/i/1289910640.jpeg

I wanted to start waking up very early to pursue a creative hobby before work rather than after when I'm wiped out from the day.

It actually works really well for me. I feel great in the morning and the rest of the day too. I did not have very healthy hours before, though.

HUE lights on a wake-up timer. Easy to setup, and you'll quickly have an addiction to buying HUE lights.

Wemo has a mini plug that you can use with your existing lighting. If you have Android, you can set it up so that your lights turn on when you hit "dismiss" on your phone's alarm.

Not sure about iOS.

I use the sleep cycle app linked up to my hue lights (one is just a generic GE connected light) and have it set to turn the lights on when I wake up and fade them out when I go to sleep. Sometimes they do fade out quite quickly which is annoying. Not sure what’s up with that.