| I regularly dive with my Salvo 21W 9ah alongside a 35W 15.6ah. They are both superb bits of kit and I really can't fault either of them in anyway - simply better than anything else I have ever seen out there.
Would I do a straight swap for my 21W for the more expensive 35W? Actually no I don't think I would. The 35W uses a Li-ion charger there's not too many of those about whereas most of my buddies have Ni-mh chargers for the 9ah - so forgetting or busting a charger isn't going to spoil the dive trip.
The Ni-Mh battery is cheaper to replace and the bulb spares are cheaper too (not that you really need a spare with these hard ass bulbs that Barry uses).
The 35W has a smaller head with the ballast in the light canister and that is a nice touch but not enough to swing it IMO. The 35W looks to be a whiter light in the water (the 21W appears to have a blue tinge to it - useful for telling team members apart) and it may go a smidgin further... For my money the 21W is pretty damn perfect - the 35W just has that little cherry on top.  |