CoolFire (The Original) - USB-C UV Free Solar Watch Fast Charger for All Eco Solar Watches. Safe 24/7 Charging (No Timer Needed). Reloj Hombre Portable Charger. Fits G-Shock, Citizen, Seiko, Garmin SV

Fantastic little item, charged up my casio mudmaster and citizen eco drives, easy to set up, easy to use, and actually works. Doesn't over heat, 2 different pad sizes for different watches, well worth buying

There are devices that keep automatic watches fully wound when they are not being worn and now there is one to recharge solar watches off the wrist; it is the "CoolFire Solar Watch Fast Charger (compatible with all kinds of eco solar watches) 1046". Getting sufficient light onto a watch-face during the darker months to add to its current charge state is a perennial problem and necessarily involves artificial light sources, most of which emit varying levels of heat that could seriously damage the watch's internal components if sufficiently close (halogen and filament bulbs are the worst); at best, when too distant, charging can be exceedingly slow and need many days. Even with cool- or cold-running CFL or LED bulbs, 24-48 hour charge times are typical and may not then fully charge a watch. The LEDs used in this are a true cold light source and 22 of them produce a strong white light. Power is via a USB cable which may be connected to a computer or a mains USB plug adapter. A co-axial jack socket is a possible power provision option but the enclosed leaflet neglects to mention it but presumably also requires 5v at 2A. Not all solar watches are equal and some charge more quickly than others. The instructions for different watches may include charge times under various lighting conditions. According to the manual for a certain Citizen watch, 20 hours is required for a full charge at 100,000 lumens (bright full sunshine) and 60 hours at 10,000 lumens (cloudy, overcast day). For another Citizen watch, 11 hours in full sunshine is suggested confirming variations among Citizen's watches and other brands may have similar variations. With 40,000 lumens supplied by this unit, 36-48 hours may suffice for a top-up charge sufficient for up to 60 days' use although considerably longer than the 10 hours suggested by a previous reviewer for a full charge. A watch with a charge indicator (recharged only a week or two ago) may be allowed to run down almost to empty to gain an accurate full-charge time. Citizen use overcharge protection devices to terminate the process once the power reservoir is full; other brands may not. The unit is sufficiently small to fit on a bedside table, a small area on computer desk etc provided that there is at least a nearby mains socket or computer; some audio devices have USB charge ports for just such a situation. A power bank is yet another power source option. Other than the unit and USB lead, two soft rubber watch supports/masks are included to respectively suit watches of around 43 mm and 38 mm diameter; there is no specific provision for small-faced ladies' watches and some light leak will occur unless further masked in some way. The unit is light but unstable as the length and weight of the USB lead tend to drag it but with a weighty all-metal bracelet watch mounted it is perfectly stable. Lightweight poly-carbonate watches with silicone, nylon or fabric straps may be a problem unless extra weight, e.g. several large coins, is placed on the back of the watch. This charger is faster, brighter and more efficient than the CFL desk lamp first used or the LED one later used, both with lamp-to-watch distances of around 15-18 cm and typically for up to 48 hours, sufficient for at least 50% charge levels in most instances. There is an option to insert two AAA batteries via the base and then to use it as a super-bright torch or emergency light.

Pleased with this product and at this time of the year in the UK it allows the watch to function

I came across this item by chance. As a person who collects watches and has a number of Eco Driver ones that charge by sunlight I have found this device very useful. As someone who lives in an area with very little sunshine - particularly in winter - and who keep their watches in covered watch cases charging is an issue. I have two different size Eco Drive watches and this item comes with different size rings to suit whatever watch you are charging. 12 hours charging your watches using this item gives 6 months of power. Straight forward to use. Probably of limited value if you only have one or two watches but in my case a God Send.

Performed very well on the first few ‘charges’. Remained cool throughout. Light quality is good. The plastic casing is a bit on the cheaper side, but it otherwise appears reasonably well put together.

This is a bright light that charges battery watches that are solar charged i bought a new watch and needed to charge it it was almost out of power this charged it right up and charges the luminus hands and minutes markers every five mins when charged they stay illuminated quite some time the light has two rubber guards mine came with only one but that could be due to packing it doesnt charge faster than sunlight but sunlight when shining does make my tag heuer watch quite hot this makes it slightly warm so i feel its less harmful so never going to have issues on cloudy days its worth the money if you have a solar powered watch I would recommend this if your worried about your expensive watch getting to hot directly from the sun tags aren't cheap but great watches and I aim to have it my entire life whuvh is short due to copd but I wanted an accurate watch alteast once in my life my old gshock watch I threw away because the battery went flat and wouldn't charge by sunlight in the winter I wish I had this to recharge it by mistake but life's full of learning curves I would definitely recommend this item worth every penny

Works perfectly

I have a range of Casio and Citizen solar powered watches and in the North of the UK they sometimes are tricky to fully charge during the colder months. I had tried leaving them on a window sill but my Citizen got very hot indeed there and I was worried the heat might damage the internal electronics. So when I heard about this gadget I thought it sounded interesting - safe way to charge the watch in a relatively short period of time. Well this turned out to be a Ronseal product - i.e. it does exactly what it says on the tin ! It works ! It charged my Citizen fully from a low to full charge in about 7 hours. You have two rubber holders so you can choose one for the size of watch face and then avoid the watch face scratching on the plastic of the charging lights. You can use this powered by a USB port on a laptop or desk computer or else do what I did which was plug it into the mains - either via a generic mains to USB power adapter or (in my case) I used an iPad mains charger. It can also be battery powered. Yes it is essentially a bit like a torch but this is generally wider than a torch so that even watches with large faces can be accommodated and the LEDs are totally cool in operation, generating no heat. Overall pleased with the purchase - it's juts a bit pricey for what it is.

this item seems to work fine to charge my Citizen watches (I have 12)... if your watch doesn't have a charge meter it's hard to tell how fully charged the watch is so a review is difficult, however, I would recommend this unit if you wear your watch all the time and don't have time to leave it in the sun once in a while (especially in snowy winter)

Den är effektiv i att ladda, gör helt klart vad den är tänkt att göra, men den genererar betydligt mer värme än vad jag fått uppfattning att den skulle. Inte så klockan får skador, men mer än vad som känns helt tryggt. Jag skulle inte ladda mer än 4-5 timmar i streck

Funciona perfeitamente, tem excelente qualidade, muito prático. Vale o que custa pois a satisfação é certa.

Buen producto

Works as described my Seiko solar battery always charged !!