The LD-417 aluminum LED waterproof diving flashlight is engineered for the demanding conditions of underwater use, where pressure, corrosion, and visibility all work against standard lighting. The body is machined from aerospace-grade 6063-T6 aluminum alloy and finished with a Type III hard-anodized coating that resists saltwater corrosion and abrasion, so the light holds up dive after dive. A tempered glass lens transmits the LED beam with minimal loss, and double O-ring seals at every joint create a watertight barrier rated to IPX8 at 100 meters of depth.

The sealing system is the critical differentiator for a diving light. Where ordinary waterproof flashlights rely on a single O-ring, the LD-417 uses redundant double O-rings on the tail cap and head, so even if one seal is compromised the second keeps water out of the battery chamber. Divers should lubricate the O-rings with the included silicone grease before each dive to maintain flexibility and ensure a proper seat. The threaded connections are precision-cut for smooth engagement, and the anodized finish prevents galling that could seize the joints under pressure.

Driving the beam is a CREE XML-L2 LED rated at 10W and 800-1200 lumens, paired with a polished reflector that produces a tight hotspot with enough spill to read gauges and navigate reef structure. The focused beam cuts through particulate-filled water better than a flood pattern, maintaining usable throw even in low-visibility conditions. Power comes from a 26650 lithium-ion cell at 3.7V and 5000mAh, delivering 2-4 hours of runtime across high, low, and SOS modes, with a low-voltage warning to prevent deep discharge.

For divers who need a reliable primary or backup light, the LD-417 balances depth rating, brightness, and runtime in a compact 130-160mm package. The lanyard and included accessories make it ready for the water straight out of the box, and OEM logo engraving, LED chip selection, battery capacity, and color options let distributors tailor the light to their market. With CE, RoHS, FCC, and IPX8 certification, it meets the safety and performance expectations of dive shops, marine suppliers, and outdoor retailers worldwide.