That worked a treat. I'm down at Battle camping next week which is quite near you, I will let you know the winning Lottery No'sTry holding down one of the + or - buttons for about 10 seconds and you will see No1 or No2 flash up
This changes the mode between the two and I'd say you would want I be on No2 as this will give more of a true and steady power delivery
Hope that this helps