2. Materials: metal+plating+plastic.2pcs CR9 2 7 or 4pcs A G 3 batteries ( big storage, permanent & serviceable)can sprinkle grit on the surface that will become more and more smooth & metallic. (optional color of the surface: base on the customer`s requirements );
3. Project logo comes out from LED torch to promote your goods more and more perfect & clear;
4. Long focus with 1M-4M is the best,shot can reach 5M in dark place.