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FAQ

QCustomized product advantages
· Low cost:   For a long time, the cost of die-casting mold remains high, because there are too many middlemen and increase prices layer by layer, which finally leads to the high cost of mo...
QConstant lumen output ( CLO )/ Light decay compensation
The principle is to realize the function of the sensor by using the polarization state of light. When a polarized light passes through the medium,if there is an external magnetic field in the beam pro...
QApplication of NTC technology in ZISTELED LED Highbay and LED Streetlight
Temperature sensor NTC is widely used as over temperature protection of LED lamps. Especially the High wattage LED Stadium lights or LED  Streetlight, Due to the small space of LED housing, the h...
QHow ZISTELED make a Anti-Corrosion LED Highbay, LED Floodlight and LED Streetlight
According to the needs of different projects, some lights are installed at the seaside, with humid climate and high salt fog,To make sure the lights works good for a warranty time,the Surface treatmen...
QApplication of microwave sensor in LED lighting
At present, many lights in the market are human controlled without automated, resulting in energy loss,especially in public places such as courtyards, street lamps, teaching buildings and squares.Now ...
QDifferences between ENEC and ENEC + Certification
The ENEC and ENEC + marks are common marks for safety certification in all European countries, not only for a single country,but also actively followed by all signatories of the certification program....
QWhat is the difference between DALI 2.0 and D4i?
D4i is an extension of DALI 2.0. D4i products are dali-2 products with some new specific feature sets.All D4i certified products are also DALI2.0 certified products. These products can optionally carr...
QMain factors affecting the quality of LED lamps
At present, the quality of LED lighting market is not so stable. To save the costs, Some of them prefer sacrifice product quality. Replace ADC12 Aluminum with ADC7 aluminum ingot.And the heat dissipat...
QHow to distinguish the quality of LED power supply
1、 PFC (power factor)However, not necessarily high PFC is good, but also small overall oblique wave, small ripple and low interference (because some manufacturers deliberately make PFC very high but ...
QCharacteristics of warehouse lighting
In today's energy shortage in most countries, the energy saving of industrial lighting system is the general trend. High quality industrial lighting can not only meet the extreme environment of indust...
QWarehouse lighting precautions
1. Meet the requirements of night operationNot only at night, because many visual operations belong to indoor operation, artificial lighting is required even in the daytime, and its lighting effect ca...
QWhat is the maintenance factor of lamps
Lamp maintenance coefficient refers to the ratio of the average illuminance (i.e. maintenance illuminance) of LED lamps to the average illuminance (i.e. initial illuminance) when the system is newly i...