Sofirn SD05 Led-duiklamp, erg heldere 3000 Lumen duikerzaklamp met XHP50.2 oplaadbare accu, magnetische ring, waterdichte veiligheid onderwater, 100 m

I was positively surprised with this dive Light, the build quality is excellent.It has a very high light output even compared to other even bigger dive lights.I took it on several dives so far and it has performed flawlessly. The light has quite a focused Hotspot, which might not suit all purposes, like underwater photography.Personally I really like the the magnetic switch, because it is very easy to operate with one hand (didn't try with gloves). Also this switch surely contributes to the reliability because there is no physical penetration of the lights casing like with a button switch. The parts that can be disassembled for battery charging are fitted with a double o-ring seal and can be screwed in firmly.This seem like an perfect dive Light to start for recreational divers, and can serve as a secondary or backup for divers with a higher demand of a primary light.

Handzame duikplank met een hoge lichtopbrengst onder water. Blij mee

gewoon super

Na ontvangst batterij in lamp gedaan, deze ging niet aan. Heb de batterij in lader gedaan en deze leek op te laden. Toen indicator groen werd de batterij weer in lamp gedaan, maar de lamp heeft geen enkel teken van leven gegeven.Retour leverancier...

I bought the flashlight less than 2 years ago and only used it about 5 times. During the first few times it worked great. It’s very bright and has different levels. But the last time I used it, it started turning off on its own. I thought the battery might be empty. I charged it and now the flash light won’t turn on at all anymore despite being charged (green light on charger). Very disappointing and unfortunately the warranty is only 1 year.

Leuke lamp, alleen er zit een flikkering in dus dat kan vervelend worden onder water.

Davvero un prodotto dall'ottimo rapporto qualità/prezzo.La prima impressione è più che positiva: si percepisce infatti una costruzione impeccabile, con spessori abbondanti e doppi o-ring (che arrivano già lubrificati) che proteggono l'interno della torcia da infiltrazioni d'acqua. Non poteva essere altrimenti, visto che la torcia è certificata IPX8 per immersioni fino a 100 metri di profondità!In mano dà una sensazione di assoluta robustezza e si impugna bene anche con le mani bagnate.La confezione è completa di tutto quello che serve per essere subito operativi; sono inclusi:- la torcia, ovviamente;- una moderna batteria LiIon 21700 (come quelle utilizzate da Tesla nei suoi pacchi batterie), con capacità dichiarata di 4000 mah;- un cilindro di plastica che serve come adattatore per poter utilizzare le batterie in formato 18650, fino a poco tempo fa più diffuse ma più piccole e con capacità minore (quindi con meno autonomia);- un caricabatterie ed un cavo USB, da utilizzare per ricaricare la batteria collegandoli a qualsiasi alimentatore USB standard;- il classico laccetto da polso, da attaccare al retro della torcia per evitare cadute accidentali;- 2 o-ring di ricambio;- il manuale di istruzioni.Prima di iniziare ad usare la torcia è necessario rimuovere un piccolo pezzo di carta isolante dalla batteria; la batteria arriva carica circa al 60%-70%, come da consuetudine per l'immagazzinamento di batterie al litio. Testandola con un caricabatterie OPUS già in mio possesso, ho misurato una capacità effettiva di 4050 mah, leggermente migliore del dichiarato.Con il caricabatterie dello smartphone (da 1A), e partendo da batteria completamente scarica, la ricarica completa impiega poco più di 5 ore.La torcia è semplicissima da usare: invece del classico pulsante, è presente un anello magnetico da ruotare per accendere e spegnere la torcia e per selezionare il livello di luminosità desiderato, scegliendo tra 3 livelli diversi ben spaziati tra loro. L'anello può essere ruotato anche impugnando la torcia con una sola mano, ed è molto pratico anche sott'acqua, a differenza di altre torce che invece prevedono un pulsante/interruttore da premere che invece potrebbe bloccarsi scendendo in profondità, a causa dell'aumentare della pressione dell'acqua.Ho trovato la torcia perfettamente utilizzabile anche fuori dall'acqua, con l'unico svantaggio che tende a surriscaldarsi un po' se usata a lungo al massimo della luminosità; si tratta comunque di un fenomeno normale un po' su tutte le torce led di elevata potenza. In questo caso la torcia si regola automaticamente abbassando la luminosità per evitare di surriscaldarsi troppo. Da notare che durante le immersioni questo non avviene, perché l'acqua favorisce la dispersione del calore prodotto e permette di mantenere più costante la luminosità emessa; ne consegue una autonomia inferiore in acqua, comunque pienamente sufficiente per la durata di una bombola. La batteria quasi scarica viene segnalata dalla torcia tramite 3 brevi lampeggi.Il fascio di luce ha un cono centrale molto luminoso per illuminare lontano, sfumato in una corona esterna abbastanza ampia per illuminare bene l'ambiente circostante. Pur trattandosi quindi di una torcia pensata per le immersioni, si presta bene anche per un normale utilizzo all'aperto. Allego alcune foto dove si vede la "potenza di fuoco" disponibile, davvero notevole.L'avessi comprata prima! Ora vediamo come si comporta nel tempo, ma le premesse sono decisamente positive...

I've bought and tested quite a few flashlights. From my testing (swimming in a river and leaving it submerged), the Sofirn SD05 is a great waterproof light.It uses a 6000K (cool white) CREE XHP50.2 LED and puts out 3000lm on high. It takes a single 21700 sized cell, though will work with 18650 cells too.The original SD05 version stepped down from high after 3 minutes to keep the light cool, which isn’t so useful in a diving light. Sofirn listened to customer feedback and have released this new SD05 flashlight without the timed step down. The old version was listed at 2550 lumens and the new one claims 3000 lumens. Some quick tests and comparisons to other known lights and a cheap lux meter show this to be true.The Amazon listing shows this light as 294g - that's probably the box weight. It's actually 120g (without the cell) and 187g with. The listing doesn't show the body diameter either, which I measured at 29.0mm.*** Appearance and quality ***The SD05 has 2 O-rings at each end of the body tube to help with waterproofing. There’s 2 o-rings, 1 either side of the glass too. The box only comes with 2 spares but they’re easy to source if you need new ones. The body tube is asymmetric, with much thinner threads on the head end (the same size as the bezel threads). I have no idea why they went with 2 thread sizes. There isn’t any knurling, aside from a few bumps. The SD05 has fairly thick springs at either end. This means it can take a range of different length cells and doesn’t flicker when it’s shaken. The SD05 takes a 21700 cell, so is a bit bigger than most 18650 lights.*** Carrying and everyday use ***The SD05 comes with a standard lanyard, which is attached at the tail at the side (so it can still tail stand). There’s no clip but the light’s probably a bit big for most pockets anyway.*** Underwater use, swimming ***I have a few lights that are IPX8 rated (so should be waterproof enough to be in water for 30 minutes at 2 meters depth) but don’t have any that are designed primarily for use underwater. I’m by no means a diver (I’ve never been anywhere near the 100m depth rating of the SD05) and I rarely go in water when it’s dark or deep enough to need a flashlight. I wanted to put the SD05 through its paces though, so I took the SD05 to a nearby river. I’d normally be nervous putting electronics in water, especially a river that was so murky. The SD05 did fine though and allowed me to see fish and stay out in an inflatable dinghy well past dusk. I have to admit, having a flashlight underwater is pretty cool at night. The 3000 lumens allowed me to see over 2 meters through the cloudy parts of the water. I lowered the light on a string down 2 meters a couple of times too. The river wasn’t anywhere near as deep as the 100m rating that Sofirn give. When I was done I gave the light a rinse and dried it. As expected, there weren’t any signs of water ingress.*** Interface and switch ***The SD05 has a rotating “switch” instead of a button, presumably because it’s hard to make a physical button fully waterproof. I’ve never used a flashlight with a switch like this before. It’s incredibly intuitive and doesn’t need any explanation. The switch feels very slightly loose and has 0.5mm play either way at each mode but this doesn’t seem to be a problem. The switch changes mode when it’s about 2/3 of the way towards the mode you’re changing to, whether that’s up or down. This is good, as it means there’s no half way point for it to flicker at. The switch has very slight knurling and can be rotated with just a thumb, albeit slightly awkwardly. Using the switch with gloves on works fine. Not a problem using both thumb and index finger though. More knurling would mean use with just a thumb or finger would be easy. The SD05 uses a magnet in the switch (a reed switch) to work out which mode it should be on. That means the light can be turned on with any magnet! This is unlikely to be an issue in most cases but is good to know.*** Cell and charging ***The SD05 came from Amazon with a cell, cell sleeve and a charger. The cell is a Sofirn branded flat top 21700, that says it has a capacity of 4000mAh and current of 40A. The cell measures 21.5mm diameter by 70.8mm long. The 21700 cell protrudes about 5mm from the tail. My XTAR VC4 said it put 3829mAh into the cell from an almost full discharge, which is pretty close. If you’re actually using the SD05 for diving then buying a 5000mAh 21700 cell would be worthwhile for 25% extra run time. Changing cells underwater is not recommended. The sleeve is designed for 18650 cells but it’s a bit wide, with an innder diameter of 19.5mm. This didn’t seem to be a problem though and a flat top 18650 worked fine with it: sitting flush and making a good connection with the springs. Almost any 21700 or 18650 should work with this light. The only cell I had that didn’t fit was a 77.6mm 21700 cell with integrated charging. The single cell USB charger is basic but seems to do the job. It’s rated at 1A and a quick check showed it pulled 0.85A via from the included micro USB cable when the cell was getting full. The charger is spring loaded and should charge cells between 31mm and 72.5mm and mentions cells from 26650 to 10440. The charger is only 19g, so would make a good travel charger for lithium cells.*** Light output ***There’s only 3 modes but they’re nicely spaced. The modes seemed fine for use in water but 300lm is quite high for general use. When packing up after being out on the river, the 300lm low was a bit bright.Mode | Lumens | RuntimeHigh | 3000 | 1h 38minMedium | 900 | 2h 30minLow | 300 | 8h 16minThe SD05 uses a 3V LED and takes a 3.7V cell so it can use simple driver. There’s no voltage boost circuit here, which means the output reduces as the cell voltage drops. My light meter setup isn’t calibrated but does accurately show relative light output changes. Left out on a hot day on high the light will step down from 3000 lumens after a minute. The supplied cell then lasted over 2 hours above 600lm before the low voltage protection kicked in. Holding the light and on a cooler day will probably let the light stay brighter for longer, meaning the cell won’t last as long. The SD05 got up to 55°C on high. I tested the SD05 in water, to check the thermal regulation and also just because I could. The SD05 stayed above 2000lm for about 30 minutes, then started to drop off and only lasted 45 minutes on high. You can also see the low voltage protection kicking in, dropping the light to medium, then low and giving some warning flashes.*** LED and beam ***The SD05 has a 6000K XHP50.2 LED and orange peel reflector. The large head makes this slightly throwy (270m), with a smooth transition from spot to spill. 6000K is way too cool for my liking but neutral white 3V XHP50.2 LEDs seem hard to come by. The driver uses PWM to dim the light in different modes. The PWM isn’t noticeable by eye.*** Pros **** Very waterproof* Rotating switch is intuitive and well designed* Beam profile works well underwater* Stays on high as long as the cell can provide power* Comes with cell and charger*** Cons **** 300lm low isn’t very low* 6000K LED is too cool for my liking*** Summary ***The Sofirn SD05 was more fun than I expected – I’m now checking the IP rating of all my other lights to see if they can be used in water. The SD05’s quality is great and I have no doubt that this would be a solid light for actual diving. Sofirn listening to user feedback and updating the light is a great sign.

Diving 18m deep switching on the lamp. And the lamp doesn‘t make a difference vs natural sunlight. Waste of money. Magnetic switch ring not easy to handle under water.

Ich habe die Lampe für nächtliche Ausflüge in die gefluteten Steinbrüche der Gegend gekauft.Dabei erreiche ich zwar nur so 5m Tauchtiefe, aber auch der ein oder andere Sprung von größerer Höhe ist dabei. Wenig überraschend macht die Lampe das problemlos mit, ohne dass Wasser eindringt.Die 3000 Lumen werden vermutlich jeden erstmal umhauen, der noch keine moderne Taschenlampe im Dunkeln genutzt hat. Unter Wasser kann man aber quasi nicht genug Licht haben, selbst in relativ geringen Tiefen. Die Lampe ist gut geeignet, um beim Tauchen nützlich zu sein, man sollte unter Wasser aber auch keine Wunder erwarten. Irgendwo limitiert dann einfach die verwendete Zelle und die geringe Größe.Natürlich kann man die Lampe auch an Land nutzen, wo sie ebenfalls souverän ihren Dienst tut. Ein Überhitzen muss man nicht fürchten, denn sie regelt zuverlässig vorher die Leistung runter. Inzwischen ist hier auch eine richtige Regelung verbaut, während in der ersten Revision einfach ein zeitlich vorgegebener Step-Down genutzt wurde.Die Bedienung über den Drehring ist kinderleicht und zuverlässig. Die SD05 prädestiniert sich damit auch für wasserscheue, die eine simple, robuste und leuchtstarke Lampe ohne Schnickschnack für den Alltag suchen.Einziger Kritikpunkt ist für mich die recht simple Elektronik. Der verbaute FET-Treiber ist ungeregelt, d.h. die Helligkeit nimmt mit Sinken der Akkuspannung kontinuierlich ab. Ein Boost-Treiber könnte die Helligkeit konstant halten. Allerdings ist das angesichts des Preises zu verzeihen und sorgt nebenbei für eine lange Laufzeit.

Super torche, parfait de jour comme de nuit les 3000 lumens sont bien là. Le système d'interrupteur est top. Test à 40m, sans problème. Un peu moins cher chez le concurrent avec une batterie + puissante.