The underwater world can get very dark, especially when you want to go deeper and explore the unknown. Luckily, scuba diving and snorkeling equipment have evolved a great deal with technological advancements, and you can now put special dive lights inside your scuba gear bagPrimary Dive Lights
Primary dive lights are typically very bright, massive and have a long run time, able to light your way both during day and night. Such lights are durable and serve you for a long time. Lantern grip or pistol grip are common on these lights, and they are thus comfortable to hold as well. The best primary lights have the most brightness in the centre beam, which allows you to see during night when visibility is poor.Secondary Dive Lights
Secondary dive lights are your backup lights that you need to use when your primary light fails. For safety reasons, you should always have two lights with you. As you probably do not have to use the backup light regularly, such a light is typically more compact and lightweight than the primary. You need to put your secondary into your pocket, while holding on to and finding your way with the primary torch.Photography and Video Dive Lights
Taking photos or capturing videos underwater calls for a torch that provides a bright beam wide enough to light your subjects. Adjustable power settings are desirable, as then you can tune the light for your photos and avoid overexposure. If you want to entice marine animals, choose a UV light that also shows them in fantastic colours.Features to Consider
When purchasing a dive light, consider whether you prefer disposable or rechargeable batteries. The latter do cost more upfront, but make up for it in the long run. Rechargeable batteries provide more power and are environmentally friendly as well. When choosing the brightness level, remember that brighter is better, especially when you dive at night. Choose the beam angle based on the kind of diving that you practice: a narrow spotlight helps with spotting, allowing you to look under ledges and into crevices, while a wider beam lights up a larger area.