This item is a 100W LED light that can be powered by a standard 12V battery, using a DC-to-DC step-up converter. The listing includes a DC-to-DC step-up converter to allow power from a standard 12V battery. Please note: Do not get the voltage converter wet. Sales were stopped because someone put the voltage converter and LED in the sea. Heat is always generated when converting 12v to 36v. Never pour water on it because it gets hot. This is the smallest 100w LED that can emit intense light. By focusing the light on "only the depth where visibility is possible," the fishing results will change dramatically. From the user's perspective, (only the reflected light in the water is visible) It emits no light in unnecessary directions, and concentrates the light on the necessary area. The color is blue, which many people requested. Power supply: DC12V input ⇒ Operating voltage DC36v **The voltage is increased by the converter included in the set.** DC36v 100w ・Power cord converter: approx. 1.1m ・Power cord to LED: 6m (New type of battery clip that is rust-resistant) ・The size of the main body is 162mm long, 93mm wide, and 13mm thick. ・The power cord "red clip is positive" "Black is negative." ・Please fix it to a solid pipe with bolts. Since the best days for whitebait eel fishing are when the water surface is rough, ① The glare of the water surface reflection has been completely eliminated. ② Most of the LED's irradiation light is concentrated on the area to be caught. ③ The strong light source of the LED does not reach the eyes of the fishermen, so they do not get tired. The LED being sold has a 120-degree irradiation angle. (The light source visible to the fishermen) is weak light. The fishermen's eyes only receive weak light in terms of the irradiation angle. It illuminates the area to be caught with the strongest light. By sinking it and illuminating the upper diagonal direction with the strongest light axis, the swimming whitebait eels are clearly visible. Even in places with waves or "foamy sea surfaces," visibility underwater is not lost. Even the underwater that should be completely invisible after the waves have passed is just a state where soap bubbles are lined up.