Wired submersible LEDs material on batteries (long life 175 watts) used for night diving.

With the experience of prolonged use of this type of lighthouse, my comments on this subject will be :

- A : The anodization of the body remains fragile at the slightest friction on a surface such as coral, let alone on a harder one

- B : For maximum convenience, the battery pack must absolutely be fixed in the back using a special adapter sold by the same store "eplonge.com , or using an adapter like mine, made in-house from a harness/mini-scuba diving tank support.

- C : The weight is no longer a nuisance, once in immersion.

- D : The cable remains very practical, very flexible, and of sufficient length and convenient.

- E : The advertised power seems consistent, but the LEDs remain fragile, and do not last long, at least far from the thousands of hours promised.

Personally, the first headlight received had burned out after 1 hour 15 minutes, and had been replaced by the seller after a few weeks.
With the second headlight received, after only 15 hours of use, 1 LED failed, and 1 other takes the same path.
The Eplonge.com After-Sales Service (SAV), contacted by email, has still not deigned to respond for several years, despite the acknowledgment of receipt of reading this email.
But it is true that I live 22,000 km away, and therefore cannot intervene directly.
However, I do not despair of receiving good news.

- F : The on / off mode remains very practical, you just have to make sure to give 1 or 2 more turns for extinction, in case of shaken or agitated transport (boat or car), in order to avoid any inadvertent ignition which could be very harmful if the equipment is confined in a firm bag or compartment.
As this material heats up enormously (See paragraph - K): below), a non-negligible risk of fire would then be possible.

- G : The autonomy of this lighthouse, once the charge of the batteries is completed to the maximum, in several times, after each cooling of the body, is summed up in three distinct phases.
he first, with an effective useful life of 2h15 giving probably the 60 watts promised.
Then, very quickly in 2 or 3 minutes, the voltage drop occurs, to give the second phase, of an additional useful duration of 2h30, probably accusing the 30/40 watts.
Finally, the third phase, tested in a basin of 60 liters of water, shows a small 05/10 watts for 20 hours.
I have never been to the end of the complete discharge.

- H : Charging without disassembling the cable is undoubtedly also practical.
But, for my part, I find the adjustment too fine, because I was forced to have to disassemble the battery pack to screw the internal stainless steel nuts for fastening the batteries that had loosened, and glue them to avoid any possible loosening, thus losing the benefit of the manufacturer's warranty.
In addition, the small adapter block for recharging is also too adjusted, and a little gadget, insofar as its components are not well connected together, and disjoin after a few screwing / unscrewing.
Here too, I was forced to fix the various elements with "Superglue / Loctite" glue.
Likewise, the part making contact with the inside of the block, for recharging, is too short, and had to be extended a little so that contact is made correctly continuously, without the charge indicator flashing.

- I : The charger, a little gadget too, does not seem very robust to me, and its reliability remains to be demonstrated.
In any case, the charge indicator remains very sensitive, not to say whimsical.
The full charge is done after about 7/8 hours.
I would recommend doing it in 2 or 3 times, leaving the battery to cool between each charge.
Whatever the duration of use, it should be known that thereafter, the duration of recharging remaining function of this duration of use, the indicator (Yellow!) Begins to flash 15 minutes before the complete charge, to then extinguish at the end of the charge.
Then immediately disconnect the charger from the battery pack.
Note also that, if this indicator flashes continuously during charging, it means that the contact between the various elements is poor, and that the charge therefore does not pass.
Then check the various connections.

- J : Regarding the 12-volt Ni-Mh batteries, I don't have a point of comparison yet.

- K : CAUTION : do not use this headlight in the open air, because the handle heats up terribly and becomes hot after a few minutes, to the point of not being able to be held, even with wet gloves, which could become harmful for all equipment.

- L : The After Sales Service (SAV) leaves something to be desired, depending on the country to which the material is sent, I think ... For example, if an exchange of all or part of this material is required, you should know that all return costs to the seller remain the responsibility of the customer, even if it is an original defect.
In any case, this was valid as far as I am concerned, since residing overseas (New Caledonia).
The Manufacturer (Italian!) Himself, contacted by email, sent me directly to the distributor / reseller in France, without any other form of trial.