WARNING! False advertising. Seller name ARSHA. 8 watt laser projectors are not 8 watts! I purchased 4 x 8 watt stage laser effects projectors from a seller called ARSHA. I have been working with laser projectors for over 35 years. Most people will never measure the output so would never know. I tersted the output power of the lasers and only one of them was a ;little over 5 watts. These lasers should be advertised as no more than 5w. Seller sent me video of testing a new 8w RGB laser module and their test meter showing 7.6w. Obviously that it is not one of the modules inside the projectors that I have. I asked the seller to replace / exchange the laser modules with genuine 8w modules but they have declined. This seller has not offered to resolve this issue in any way whatsoever. Be careful what you buy at the ARSHA store. If the price seems too good to be true then it is! These photos are snapshots of videos of me testing the power output of the 4 laser projectors. I used 2 different test meters and conducted multiple tests. These are the highest readings that I got.