1, look at the label on the lamps and lanterns, general normal line lamp manufacturer can label before delivery of lamps and lanterns indicated the specific parameters of the product, we can through the tag to see the line lamp voltage is used by many volts.

2. How to do without labels? On lamps and lanterns is no label mark voltage is how much, if the lamps and lanterns is transparent glue, can clearly see the inside of the lamp body components, through its lamp bead amount, in the judgement of components such as resistors, capacitors, and then from low to high voltage test the lamps and lanterns of lighting conditions, can choose some testing tools during the test. If you can't see the internal components of the lamp, you need to disassemble the lamp for testing.

3, led lamp line generally chooses lamp bead, single voltage at around 1.8 3 v, general electric current can control in the 18th ma - 20 ma, for different number of mild color chip, each a different voltage led lamps and lanterns, eventually needed by the designed to engineer or technician to check.

Finally, led line lights as metope outline lighting, outdoor lighting used in the screen, for line lamp can be used in curtain wall lighting, users need more clearer expression of whether to use led lamp line as curtain wall lamp, must make voltage test, so that I may not suitable for application of led lighting products, cause safety accidents.

Many waterproof outdoor goods demand, lines such as led lamp, led wash wall lamp, led guardrail tube, led point light source, led project-light lamp, led outdoor lighting lamps and lanterns, light, waterproof watches, aquatic products, underwater camera, etc., as well as the special industry.

The water molecular diameter of the led line lamp is about 0.4mm, which is greater than the pore diameter of this scale. The diameter of the water molecule is slightly larger than the diameter of the gas molecule, and the gas can pass through the hole of 0.27-0.39mm.

The two concepts of sealing and waterproofing are in fact interlinked, but the emphasis is different. Waterproofing focuses on "don't come in" to avoid the intrusion, infiltration, and inflow of external water or water vapor media.

Once the electrical goods are in water, there may be problems such as short circuit, leakage, rust, decay, damage media price, disturbance signal and so on. Therefore, waterproof usually means to avoid the water or water vapor invasion, penetration and flow into the appliance.

More time we want to use the sealing way of thinking, ways to structure, material selection to ensure long-term effective waterproof goods, such as the traditional, classic and sophisticated skills sealed perhaps technique to enhance led outdoor lighting products, waterproof properties.

Lines for the led lamp products, waterproof and sealed well, so as to ensure the normal use of led lighting products, if found to have water and leakage is found, should stop using, after all in the products, use will have certain influence.