The first thing that catches the eye about the HeCloud F1591 is its black and fluorescent green design. The color combination isn’t just stylish — it serves a purpose. Underwater visibility can drop significantly in murky conditions, and the bright green accent makes it easier to locate your flashlight, whether it’s clipped to your gear or resting on the seabed. It’s a simple yet thoughtful detail that enhances underwater safety.
The F1591 offers three adjustable lighting modes — High, Low, and Flash — giving divers the flexibility to adapt to various underwater environments.
The High mode delivers strong illumination, ideal for exploring darker areas such as caves or wrecks.
The Low mode provides a softer light suitable for close-range viewing and conserving battery life.
The Flash mode works well as a signal light for communication or emergencies.
Combined, these options make the F1591 a versatile choice for both recreational and practical diving needs.
Every diver knows that handling equipment underwater can be tricky. That’s why the F1591 comes with both a lanyard and a Velcro wrist strap. These additions help keep the flashlight secure, whether you prefer to hold it directly or fasten it to your wrist for hands-free movement. The lightweight body — just 5.82 oz — and compact 5.7-inch length make it comfortable to carry during long dives without adding unnecessary bulk.
With multiple waterproof O-rings sealing both ends, the HeCloud F1591 is rated for use up to 20 meters (66 feet) underwater. This reliable sealing system helps prevent water intrusion even under pressure, maintaining consistent performance during dives. The durable build makes it suitable for both freshwater and saltwater environments.
The F1591 is equipped with a 3000mAh 18650 rechargeable battery, providing steady and efficient power. It runs for over 1.5 hours at high brightness and up to 3–4 hours on low mode. The included battery charger ensures your light is always ready for your next dive.
HeCloud’s F1591 isn’t about overcomplicated features — it’s about well-balanced design. From its easy visibility and multiple lighting modes to its waterproof construction and long battery life, this flashlight is made for divers who appreciate dependable gear that performs when it matters most.