Is it just the picture, Eden? It doesn't look like your version puts out anywhere near the same amount of light that the DLG does. The photos of the DLG show colored circles of light even when the bike is in fairly well lit areas - like under street lamps, at store fronts, etc. That's a heck of a lot of light. It's powerful enought to throw light on the ground and on the rider.
And, I assume the DLG's battery is rechargeable? Can AAA's be recharged? It seems that AAs chargers are the most common. You'd have to take the batteries out of the unit, recharge and replace. My little pea brain would constantly leave home without them.
BTW, for those using knogs. My experience is that they are invisible in ground fog.
Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.