I used this diluted 5:1 as recommended and there was a noticeable effect within 15 minutes. The following day most traces of the green had disappeared but a second application completely cleaned the surface. We have now had a few light showers and the stone surface seems even cleaner. I used some that was left in the sprayer to spray a wall and that has cleaned well. I'm just about to re-order.
12V Car Battery Terminal Female Cigar Lighter Clip With Socket Adapter +75W Fuse
02 Apr, 2018
Lightweight Cable
Overall this is good quality but don't rely on it for any meaningful load current. I assumed that 75W fuse meant that it would carry 6 amps but the voltage drop through the wiring was very high and the wires got hot. It would be fine for things like phone chargers etc.