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Reviews (2)
Jan 25, 2018
OK for a cheap lantern.
There's nothing fundamentally wrong with this torch. It is 'bright', but I've no way of knowing if it's really 3000LM. I have a 300LM torch that comes pretty close, so I'd take 3000LM with a pinch of salt.
Ditto for the battery capacity, because experiments with chinese cells generally show a real world capacity less than a third of the quoted capacity. The information supplied in the advert is quite confusing here, because it quotes both 9000mAH ( 9AH ) and 2AH - I assume the 2AH is the 'real' capacity. But if this is true, then the run time at 35W is less than an hour, not the 10 hours quoted. So just take all the figures supplied here with a large dollop of salt, appreciate you're only paying £15, and you'll be fine :).
Some clarifications that are not clear from the advert :
1. They may be 18650 cells, but they are not removable/replacable. So you can't just swap in another set of 18650's and recharge the others out of the torch.
2. As delivered, this torch is not waterproof to any significant extent. If it survives a storm it's by luck not design.
3. Don't unscrew the head of the torch in an attempt to get at the batteries :). Inside, you find a sticker saying that you're not supposed to do this. And then it's a PITA to reassemble because the reflector and the glass are not located, and just slide around until they're clamped.
May 08, 2019
Some potential, several problems.
4 of 4 found this helpful This product has one particular problem, which is the 1A USB current limitation. With the right USB adaptor, USB can supply 2.4A. Most lithium cells this product will be used with would be quite happy being charged at 1A as opposed to 0.5A. I'm charging Panasonic NCR18650B batteries, and the data sheet refers to a standard charge current of 0.5C, which is 1.625A. Charging at 1A would make a huge difference to the usefulness of the product because it would halve the time to charge. This limitation is spelled out in the product details, but I feel it's worth drawing attention to because of it's significant impact.
It is not at all clear that this product is charging batteries to their full capacity. The instructions do not describe how to interpret the information provided by the display. Is the 'charge' measurement telling me the charge state of the battery, or just the charge that has been supplied by the device ?. I think it's the latter, but in this case I cannot use it to tell if charging is complete.
There also appears to be a bug in the display, because after a period of charging at 4.2V the rate of increase in the charge measurement slows very significantly ( which is expected ), yet the current indicator stays on maximum ( 0.5A ). This doesn't add up. What should happen after reaching 4.2V is that the charge current starts to drop rapidly, with a corresponding reduction in the rate of increase of charge.
So overall, this product is disappointing. It works, but it's not as smart as the packaging tries to make you believe, the user interface is not useful, and not using the full current available from USB is just a big frustration.