Lost another rear light

[endoman]

Now lost 2 Smart Lunar lights due to the plastic fracturing and the whole light body falling off leaving the shell behind. Didn't notice this one until I came to clean the bike tonight. Good job it's getting lighter, think I will be looking for a different light next time. I do have a second Smart on the bike,

Any suggestions for a light that will stop on! It's fixed to the little loop on the back of the saddlepack, and is protected by a mudguard. Don't remember hitting anything hard pothole wise on the ride.