Voltage-withstanding high-power LED lamp array

The invention relates to a voltage-withstanding high-power LED lamp array. The LED lamp array comprises a lamp body, wherein cavities are formed in the two sides of the lamp body respectively, a metalheat dissipation plate is fixedly connected into the cavity in one side of the lamp body, multiple aluminium alloy heat dissipation plates are sequentially arranged from inside to outside around thecenter of the metal heat dissipation plate on the surface of the metal heat dissipation plate, a ring slot is formed between every two adjacent aluminium alloy heat dissipation plates, a ring slot isformed between the outermost aluminium alloy heat dissipation plate and the inner wall of the lamp body, an LED metal substrate is installed in each ring slot, and all the LED metal substrates are fixedly connected with the metal heat dissipation plate. The LED lamp array is suitable for all sea-depth conditions and has good corrosion resistance, heat dissipation performance, voltage-withstandingperformance and an illumination effect; and the lamp body is made of a titanium alloy material, the red copper heat dissipation plate and the aluminium alloy heat dissipation plates are installed in the lamp body, the problem of poor heat dissipation performance in a traditional structure is solved through the advantages that red copper and aluminium alloy have a high heat conduction rate and large specific heat capacity, and the heat dissipation performance of the LED lamp array is effectively improved.