It depends on how much you want to spend, how long you need the light and how you feel about batteries and battery packs. The Lumina is a well built product but it is costly ($100 for
a light), has only an hour run time on high...why would you use any other setting
...and has a proprietary battery. It looks like you can get replacement/spare batteries but they would be difficult to change in the field. That's a lot of short comings for an expensive piece of equipment. I have the Cygo version of this light and use it only in the "shoulder" season when sunrise is too late for when I go to work but the sun rises before I get there. It's perfect for up to an hour of riding but still suffers from the same problems of expense and limited run time.
You could also go the generator light which solves the battery problem but adds in other problems. First and foremost is the cost...≥$200 for a new wheel and light. The light isn't easily swapable to another bike and, if you happen to have different sized wheels, the wheels may not be interchangeable. Additionally, if the wheel is turning, the light will go out. They have a capacitor for stoplights but that has a limited use. They also can't be taken off the bike and used as a flashlight if you need to change a tire or fix something. And, again, that $200 for
a single light. But at least you don't have to deal with batteries
The best value in bicycle lighting...until the tariffs hit...is something like
this. No, it doesn't put out 1200 lumens...it's closer to 800 which is still bright..., the mount is nothing to write home about and the quality may not be as good as the Lumina but at $18 per light, you can experiment without breaking the bank. You can buy one, two or 3 and mount them on your handlebars (2) and on your helmet. You can find these on Amazon or Fleabay...search for "Cree bicycle headlight". I would suggest looking at where the item ships from as the ones that come from China can take a while to get here. There are plenty of suppliers in the US, however. The quality, by the way, isn't as bad as some would have you believe. I've been using several for nearly 10 years now. They have lasted well but, occasionally, they do fail. At $20 to $30, I'm not out that much and just get another one.
Another aspect of the external battery light is that you can switch batteries easily to extend your range or you can get larger battery packs that extend the run time from about 2 hours to close to 6.
Finally, I'll agree that the rubber band mounting system these inexpensive lights use is pretty bad. I changed to a Marwi mount system that is detailed
here. You can get the parts at
his webstore. It added $15 to $20 to the cost of the light but it is still less expensive than anything else with comparable light output. The Marwi mounts are super solid and very durable. I have some that are over 15 years old and still going strong. One word of warning, however. The mounts can be a bit tight to begin with. Filing down the clamp mount will make them easier to put on and take off. You don't have to remove much plastic but a little bit will help.
Good luck.