Diving lights are essential equipment for scuba diving, free diving and night diving. A good diving light not only allows you to see your surroundings clearly in dim underwater environments, but also improves safety and enhances the diving experience. This guide will help you understand how to choose the diving light that best suits your needs.
Types of diving lights
Primary Light
Purpose: as the main lighting source Features: high brightness, concentrated beam, long battery life.
Applicable scenarios: deep diving, low visibility environment, cave diving.
Backup Light
Purpose: Emergency lighting when the main light fails.
Features: Small size, portable, high reliability Applicable scenarios: Essential for all diving activities.
Video/photography light
Purpose: fill light for underwater photography and video.
Features: soft light, accurate color temperature, adjustable light .
Applicable scenarios: underwater photography, video.
Key purchasing factors
Brightness (lumens)
Recreational diving: 500-1500 lumens.
Technical diving/cave diving: 2000 lumens or more.
Photography: color temperature and color rendering index (CRI) need to be considered.
Beam angle
Narrow beam (5-15 degrees): strong penetration, suitable for long-distance lighting. Wide beam (60-120 degrees): wide field of view, suitable for close-up observation and photography.
Battery type and battery life
Rechargeable lithium battery: environmentally friendly and economical, attention should be paid to the waterproof charging port design.
Disposable battery: convenient for emergency backup, but high cost for long-term use. Battery life: at least should meet the needs of a single dive (60-90 minutes).
Maximum depth rating
Recreational diving: 30-60 meters is enough.
Technical diving: 100 meters or more rating is required.
Size and weight
Balance lightness and portability
Consider carrying method and mounting device
Operation method
Swivel head: good waterproofness
Button type: convenient operation
Magnetic control switch: emerging technology, reducing moving parts
Special function considerations
Dimmable: flexibly adjust brightness in different scenes
SOS mode: emergency signal function Battery power indicator: avoid running out of power during diving
Overheat protection: prevent damage from long-term use
Interchangeable lens: adapt to different beam requirements
Product series and price reference
Diving flashlight (100-200)
Submariner 14S: Cost-effective, provides 2000 lumens 5500K white light, can penetrate 40 meters underwater, and has stepless dimming function, Type-C charging, strong light can last for 3 hours. Power indicator shows battery level, warning charging, 6 modes: super strong, medium, weak, SOS, burst flash. 6 modes meet diving, outdoor and emergency needs.
Submariner 26S: 5000 lumen output, strong light for 6 hours, 100 meters waterproof, can provide excellent diving lighting, Type-C charging, power indicator light, warning reminder charging, 5 modes: strong, medium, weak, burst flash, slow flash. 5 modes meet the needs of diving, outdoor and emergency.
Underwater Video Light
Sealion L12: Cost-effective, providing 8,000 lumens of 6500K white light, blue light, red light, and 120° illumination angle.
Shark CX: Dedicated for photography, accurate color temperature, multiple light sources, providing 8000 lumens of 5500K white light, 3000K yellow light, blue light and red light, 98 CRI, 120° illumination angle
Usage and maintenance recommendations
After each dive: rinse thoroughly with fresh water, especially the switch area
Regularly check: O-ring status and apply special silicone grease
Battery management: keep 50% power when not in use for a long time
Storage: in a cool and dry place, avoid direct sunlight Transportation: remove the battery to prevent accidental start
Safety Tips Always
carry a backup light source.
Don't shine directly into other divers' eyes underwater
Pay attention to the color temperature of light when diving deep (red light has stronger penetration)
Unify the light signal system before team diving
When choosing a diving light, the most important thing is to make a balanced decision based on your diving type, frequency and budget. Investing in a high-quality diving light can not only enhance your diving experience, but also is an important guarantee for underwater safety. I hope this guide can help you find the perfect light to illuminate your underwater world among many options!
