Naips LED Emergency Down Light is specially designed for ceiling recessed emergency lighting. Automatically light at once when buildings main power outage. NON-MAINTAINED type and it can customized the emergency time for different wattage. We can also add the LED emergency driver kits to match different kinds of your LED downlights. Led Downlight With Emergency Backup,Downlight With Emergency Backup,Emergency Light Downlight,Led Emergency Downlight Foshan Nai An Lighting Electric Co.,ltd , https://www.ledpowerpack.com
Miniature pump knowledge
Miniature air pump refers to a small size, the working medium is gaseous, mainly for gas sampling, gas circulation, vacuum adsorption, vacuum packing, pumping, pumping, supercharging and other purposes of a gas delivery device. General medical and health, research, laboratories, environmental protection, instrumentation, chemical and other industries widely used micro-air pump mainly refers to the micro-vacuum pump.