Size is one of the main considerations when choosing dive lights. While small lights are more popular because of their ease of storage and maneuverability, large dive lights are still around because of some extra features that they offer. Here are the top 3 biggest dive lights:

Big Blue TL15000P LED Dive Light

Arguably the largest in the big dive lights category, the TL15000 measures 6.47 inches (17.45 cm) in diameter on the light end and 4.88 inches (12.4cm) on the battery end. It weighs 5.43 pounds (92465 grams) when the battery is fitted.

It has an anti-corrosive aluminum housing and a separate lantern-type handle. The light has a concentrated 15-degree beam. It operates on a rechargeable Li-ion battery, and the light emits between 1,500 and 15,000 lux on four adjustable power levels. Level I (1500 lux) lasts 30 hours; level II (3750 lux) lasts 12 hours; level III (7500 lux) lasts six hours; level IV (15,000 lux) lasts three hours. This light can be used effectively up to a depth of 328 ft.


This primary light has a diameter of 2.15 inches (5.5cm) and a length of 5.8 inches (15cm). It weighs around 1.5 pounds (680 grams ) and has a concentrated beam that narrows to six degrees. It can be hand-held or mounted.

The LX20 is popular for the strength of its beam, 20,000 lux, which makes it suitable for use in murky waters. It also works effectively to a depth of 500ft. It can be adjusted to three levels of power output: high, low, and strobe. This dive light is powered by a rechargeable Li-ion battery and has an indicator to show dropping levels of voltage.

Tovatec Fusion 530

The smallest on this list, the Fusion 530 weighs 1.5 pounds (680 grams). Its length is around 7 inches (17.78 cm) and it has a diameter of around 2 inches (5cm).

This light is great because of its versatility. It can be used as a primary, backup or video light. The angle of its beam can be varied between 12 and 100 degrees, all the while maintaining remarkable power. It provides between 159 and 530 lux in three modes: high, low, and strobe. Its Li-ion battery lasts two-and-a-half hours. This light can also use alkaline batteries which can be bought separately.