Negatives:
1. Not green but red!
2. Quality mediocre, the light beam is not really a "point", but a bright spot (approx 0.5cm diameter) then blurred noise around it (about 1 cm in diameter) and then again reflections and artifacts 2-3cm around the center. -> See picture
3. No Instructions / information here.
4. No batteries here (there are 2AAA required)
Well, but what do you expect in the product description and the price.
Positives:
1. Cheap
2. Light
