light string product introduction
Light string is a decorative lighting product, originally used during the Western festival, such as to decorate the Christmas tree, to set off the festive atmosphere of the holiday night, so it is also called "Christmas light string". With the improvement of the level of economic development and the standard of cultural living, as well as the good decorative effect, the string of lights is no longer limited to the use of festivals, in a variety of commercial and cultural entertainment occasions, you can often see the night is decorated with colorful strings of lights dazzling, lively.
The simplest traditional lamp string is composed of dozens of small incandescent lamps and lamp holders, cords and plugs, which connect dozens of lamp holders in series or parallel, install small incandescent lamps of various colors, and plug in the power supply.
The sealed lamp string is a light source and conductor installed in a rigid or soft semi-transparent insulating tube, both ends sealed and jointless lamp string. It is usually composed of a hose (with a light bulb and conductor inserted inside), a connector, a plug and a head, a flexible wire assembly combining a connector and a plug to connect the connector to the hose, and the plug can be lit when it is plugged in.
When the traditional lamp string and the sealed lamp string have a flashing function, it is usually necessary to use a control device, which can choose a variety of flashing combinations. At present, the high-grade microcomputer control device has been able to make the flashing function of the lamp string infinite and colorful.
Main safety requirements
1. The cross-sectional area of the internal wiring and the cross-sectional area of the external wiring should not be less than 0.5mm2.
2. The insulation materials of the main safety components in the lamps should be heat and fire resistant.
3. Lamps should have adequate protection against electric shock.
4. Outdoor light strings should be waterproof.
5. The string of lights should be able to withstand tension.
How to buy light strings
1. Into the regular store, buy regular goods, to regular invoices, do not buy products that are too cheap, buy products that have the "three guarantees" commitment, in addition, the lamp string in our country is included in the voluntary certification product catalog of products, experts suggest that consumers try to buy products marked with voluntary certification mark "".
2. When purchasing, we should see whether the product identification is complete, and the identification of regular products is often more standardized, at least the following contents should be identified: trademark and factory name, product model specifications, rated voltage, rated frequency, rated power. In addition, it depends on whether the live body of the lamp is exposed.
3. In order to ensure that the purchased lamp string products have good insulation properties, choose the anti-shock protection category "Class II" (that is, marked with symbols) or Class III products.
4. In the purchase of hose lamp strings, should avoid the purchase of on-site assembly products, should buy the production factory assembly and equipped with certification products.
The use of light strings
1. After buying back the lamp string, do not rush to install, you should carefully look at the mark of the lamp and read the installation instructions, and use the lamp according to the method specified in the instructions.
2. It should be noted that the lamp string is suitable for use, and the lamp string not marked with IP numbers on the mark is only suitable for indoor use.
3. The use of incandescent lamp strings, when more bulbs are damaged, the safer treatment is to stop using the lamp strings to avoid possible overheating caused by combustion accidents.