Feature: 1. L2 Lamp Beads and 1000LM: Underwater headlamp has premium bright L2 lamp beads and 1000LM to meet lighting requirements 2. 90 Degree Rotation Angle: Diving headlamp has 90 degree rotation angle. Angle adjustment allows you to illuminate different angles 3. Hard Anodized Aluminum Alloy Shell: Aluminum alloy shell with hard anodized design provides a good hand feel and abrasion resistance. 4. IPX8 Waterproof And 60m Deep: The underwater diving headlamp has IPX8 waterproof grade, and the diving depth can reach 60m. 5. Application Range: This flashlight is used for diving lighting with high power, and is suitable for underwater lighting. If used on land, it is recommended to reduce the brightness to the second gear below 50 percent. Specification: Item Type: Diving Headlamp Material: Aluminum Alloy Weight: Approx. 222g / 7.8oz Luminous Flux: 1000lm Gear: 3 Gear (100%, 50%, SOS) Waterproof: IPX8 Diving Depth: Approx. 60m / 65.6yd Lamp Cup: Glossy Electroplated Reflective Cup Voltage Above 3.4V: Green Light Displayed Voltage 3.2-3.4V: Yellow Light Displayed Voltage 3.0-3.2V: Red Light Displayed Voltage 2.8-3.0V: Red Light Flashing Voltage Lower Than 2.8V: Shutdown Battery Information: 1 x 18650 Lithium Ion Battery (Shipped Without Battery). Package List: 1 x Diving Headlamp 2 x Seal Ring Note: Precautions for flashlights:1. Do not irradiate the eyes with light to avoid causing damage to the eyes;2. Avoid disassembling the lamp cap frequently to avoid causing damage to the reflective cup or light;Please install and charge the battery in the correct manner according to the battery instructions;4. Do not contact the flashlight with sunlight, water, chemicals, corrosive gases, etc. for a long time to avoid damaging the oxide layer on the surface of the flashlight;5. Pay attention to the waterproof, and fall prevention of flashlights;6. Please use the original charger to charge it. Other battery chargers are prohibited.Precautions for flashlight maintenance:Please carry out routine maintenance for the flashlight during use to ensure that it can continuously provide you with high‑quality service1. Please wipe the flashlight with a clean soft cloth after each use;2. When the product is invaded by corrosive liquid, it is recommended to clean it in a timely manner and dry it with a hair dryer;3. If the lamp cap or tail cover cannot be screwed smoothly, apply a little silicone grease to the interface;4. After stopping using the flashlight, please take out the battery and store it in a cool and dry place;5. When the flashlight is not used for a long time, please charge and discharge it normally every three months.