1. Anti-electric shock safety indicators: The anti-electric shock indicators of lamps and lanterns in the national standard are divided into Class O, Class I, Class II and Class III. The national standard clearly stipulates that the protection against electric shock of underwater lighting fixtures in similar places such as paddling pools, fountains, swimming pools and other similar places shall reach Class III. The working voltage should not exceed 24V.

2. Dustproof and waterproof indicators of LED underwater lamps: The protection indicators of underwater lamps are divided into two aspects: dustproof and waterproof, and the IEC standard stipulates that the internationally accepted protective marking symbols are as follows:

(1) Dustproof grade: According to the national standard, the dustproof grade of lamps and lanterns is divided into 6 levels. From 1 to 6 levels, the dust resistance level of the underwater lamp should reach the highest level 6, and its marking symbol is: IP6X.

(2) Waterproof grade: The national standard stipulates that the waterproof grade of lamps and lanterns is divided into 8 levels. The grades from 1 to 8 are increased sequentially, of which the 6th level is the water-splash type, the 7th level of LED waterproof lamps is the watertight type, and the 8th level is the pressurized watertight type. The waterproof level of the underwater lamp should meet the highest level 8 requirements, and its marking symbol should be IPX8, and the underwater lamp should reach IP67 in shallow water areas. Therefore, the protection index selection of underwater lamps is generally IP68.

3. Special attention: rated voltage. The rated working voltage of the LED underwater lamp is the electrical parameter index of the LED underwater lamp, which directly determines the use environment, and the actual working voltage must be consistent with the rated working voltage to prevent the high voltage from burning out the power supply, and the low voltage affects the lighting and viewing effect. In addition, generally buying LED underwater lights will be friends with transformers and rectifiers, remember to install and use according to the original instructions of LED underwater lights!