WE DIVERS ARE OBSESSED with the possibility of equipment flooding because of poorly set O-ring seals, and quite rightly so. Every time we crack something open, mainly to charge the batteries, we risk not sealing it again properly, with dire consequences.
I still have engraved on my mind the day that my wet-battery torch started to swell bigger in my hand, while at the same time the light it emitted reduced to that of a guttering candle.
The wet-battery had become wet with sea water, eventually leaving me in the dark holding onto a swollen and hot lump of plastic.
I also remember the day I flooded my camera on the swim-platform of a dive-boat, and had to hurry to get the lithium batteries out before they caught fire.
The problem was that I was on a wooden boat, where even the Olympic flame would not have been welcome. We had to build a little kiln of lead weights in which to sit the burning mess.
A wirelessly charged torch would seem to be the answer to these problems, and I have already reviewed one in these pages, sent to me by independent importer Kevin Smith.

Construction
The Atorch AT01 is a much more robust product than the one Kevin sent me before.
It is made from anodised aircraft-type aluminium, weighs 480g (as opposed to the 845g stated on its instructions) and measures 20cm long and 4.5cm at its widest point, so it fits in a proper-sized pocket. There’s a hole for the supplied lanyard at one end.

Charging
The torch is charged wirelessly, but of course you still have to plug the charger into the power supply. It’s not magic, but it does charge rather like those better-quality electric toothbrushes.
A full charge takes 5-6 hours.
You have to unscrew the rear section to reveal the part that accepts the charge. This is protected by double O-rings, and I am not quite sure of the significance of this. Should you flood this part through injudicious care of these O-rings, will it cease to work I don’t know.
The maker says it is still watertight and that the outer covering is only for protection against knocks. This does mean that there is the opportunity to replace the lithium-ion battery should the need arise.
You simply sit it in the plugged-in charging station, and a green internal LED flashes while the battery is accepting a charge.
The charging station is made to the lowest Chinese standards, but I guess it won’t be subject to careless use, although the last one I had came to pieces in my dive-bag.

Light Source
A single LED CREE XM-L T6 sits in a deep parabolic reflector that enables it to push all of its light forward in a tight beam. At full power, it emits 1000 lumens of light.

Switching
The magnetic switch is pushed forwards by a thumb to activate a constantly variable rheostat. I found that the tendency was to run the torch at full power, or just pulled back from that.
There appears to be no mechanism to stop it from being pushed on inadvertently, but the fact that the switch is magnetic means that there are no through-body connections.

Burntime
This is as variable as the light output, in that at full power it will give you only an hour, but run it at its glow-worm minimum and it will stay alight for 30 hours.

Beam
This was slightly disappointing for being quite patchy. The projected beam delivered a hotspot at 2m distance, surrounded by concentric rings of light. This is fine for use as a dive torch, but disqualifies it for any use photographically.

COMPARABLE LAMPS TO CONSIDER:
We are unaware of any other lamps in this price range that can be wirelessly charged.

SPECS
PRICE £130
DRY WEIGHT 480gm
BURNTIME 1-30hr
DEPTH-RATING 100m
CHARGE TIME 5-6hr
CONTACT kwsdivinglamps.co.uk
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