ORCATORCH D520 Diving Flashlight 1000 Lumens Scuba Diving Light Submarine Light Underwater 150m Scuba Safety Lights

For SCUBA divers, lights are not only a tool you use at night to be able to see all the things underwater, but it's primarily a safety device. Even if it is bright-as-day out, I will still bring multiple lights because lights make communicating with your buddy so much easier. But especially at night, a simple light failure could turn out to be a big issue if you don't have another to rely on for both communicating and getting safely back to the shore or boat.ConstructionThis light is quite small. It's about an inch shorter than a dollar bill, and the thickness of a quarter. I see this as a feature because it can stow so nicely under your D-ring on your harness. I've had larger lights sit there, and it's not nearly as comfortable (see the DRIS 1k light. About the same length, but much thicker, this is very hard to manage on a D-ring because of its thickness).It feels very sturdy. There are no plastic pieces on the light at all, and the aluminum does not have any give or play in it, even without the battery. The clip on top has plenty of material, and I don't have any concerns about the stability of that. The glass feels very hard. I tried scratching it with a knife made of VG-10 steel, and it did not scratch at all. The inside is also coated with a corrosion-resistant brass that helps protect the light if you end up with any seawater in the light.With it being all metal, there are no buttons (no matter how magnetic) to fail. The only way to activate the light is with the (very comfortable) rotary switch. So because of that, it's easy to rinse because there are not many nooks and crannies for salt to hide in.Rotary SwitchThis has to be one of the best rotary switches I have ever used. I was first concerned about how easy it would be to activate this light because of how small it was, but because of how far the rotary switch extends on the light, it makes it easy to find and activate the switch. This is especially important as a backup light because you don't want to be hunting for a button or something small to turn it on.BatteriesI cannot praise Orcatorch and Outdoor Equipment Experts enough for making this light run on one 18650 battery, and including a two-battery charger. 18650s are one of the best batteries made today, and they are very easy and cheap to find. Most of my other lights run on them, so I have them in excess, and I only need to take one type of battery with me on my dive. This is one of those things that you don't really think about until you have already bought the light, but are very important.BeamThe beam angle is very appropriate for a backup light. As a backup light, I want something that has a small enough beam angle to cut through any silt to signal to my buddy. This light fits that bill.ConclusionI would highly recommend this light as a backup light or a recreational primary. It's very simple to use, as there is only one mode (no more accidentally putting your light into strobe mode). It's compact so it can be worn comfortably on your harness compared to other lights. It's also very durable, so I'm not worried about throwing it around on a boat, at a beach, or in the bucket full of the rest of my dive gear. This is the simplest and most convenient light I have ever used because of the rotary lock and the common battery, and I would have no hesitation recommending this light to anybody, regardless of their diving aspirations.

As an instructor I feel a good dive light is, perhaps, one of the most vital and underrated pieces of equipment that a diver can carry with them, even on daytime dives. That said, most of the time size and weight are a primary concern. I've been diving with this light for about two weeks so far and I am extremely impressed! Bottom line, this little light is absolutely worth the price as it's construction and performance are better than every other light in this price range I've had experience with.This light comes with a charger, TWO 18650 batteries, a spare set of o-rings, and the light itself. The light is extremely slim and light, but that is no indication of the light level that this thing produces. It is very bright! I compared it to a 600 lumen light I usually dive with and it is noticeably brighter than that, so I believe the 1000 lumen claim. The specs say that the light color is supposed to be 5000K, I find that it is a bit cooler - maybe 3500-4000K, yet I find that more beneficial in water that has some particulate (less backscatter and better penetration). Battery life is fine, we typically do one hour dives from the boat, and the battery lasts at least that long. It's my standard procedure to change the battery in my lights during surface interval, so I haven't tried to push the battery life to it's limits. In truth, the battery is mostly responsible for battery life, and the power drain from the LED allows for at least a full hour of "on" time.The construction of this light is very solid. Water tightness is secured by a triple o-ring system (they did not arrive with any silicone grease on them - put some on before you dive with it) that works very well. The body of the light is metal and solid, this is NOT a cheap plastic product. The light is turned on by a twist, and is a very solid switching system. This light does not flicker, it's definitely on or off.I was taking pictures of it's performance underwater, for this review in particular because I've been so impressed with it. Unfortunately my camera flooded (it wasn't as water tight as this light), so I will update this review with pictures at a later time.I am so impressed with this light that I am purchasing a second one and will also look to purchase the push button light from the same company. I highly recommend this light for any diver looking for a good quality light at a fair price.

This torch worked well underwater. I used it on an underwater bridge inspection depth was from 20’-47’ with about 4-5 ft. visibility. Spending about 2 hours underwater at a time the battery lasted the entire dive. Only thing I didn’t like was there’s no push button to turn off and on. It has to be screwed together to operate, so it takes two hands which if you’re carrying tools, and controlling a descent by holding on to bridge piles etc. can be a little difficult. But light works great.

I bought this light to use as my backup light for recreational diving. It has an ideal form factor for this purpose in that it's fairly small and nicely finished, so once it's stowed it stays out of the way easily. On the other hand, it's sufficiently large that it feels nice in hand. Its rotary mechanism is also ideal for a backup light in my opinion, as it's straight forward and doesn't require any locking procedure to prevent accidental activation. I generally prefer lights with button activation, but they need lockout functions to prevent turning on in transit and I don't want to risk having to deal with that if I need to switch to my backup light.Only con with this light is that it's not particularly bright for use in daylight. Not really a problem as a backup. It'd be plenty bright for a night dive.

I was exited for this light but it flooded the first time I even used it …