Author: qlight blog

We have the products of 15/25/50W. There are 15/25W for normal signal phone and 25/30/50W for heavy duty signal phone. The number of model name expresses Output WATT(W) of UNIT(Speaker) and the more the number is high: the more sound volume(dB) is high. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check the informatio...

It is impossible to control volume separately for motor siren of SM200 model. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check the information of the Products through "Website > Products > Products Group". 2. Please put inquiry through "Website > Customer Support > Question and Reply". B. Offline Pur...

Using as dual voltage of DC12/24V is available in basically. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check the information of the Products through "Website > Products > Products Group". 2. Please put inquiry through "Website > Customer Support > Question and Reply". B. Offline Purchasing Inquiry ...

In case of standard specification, it is possible to control volume by using of the switch installed on the PCB Board. If you want to control by external volume, please inquiry to QLight first. And if it is possible, you have to designate it as option when ordering. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check t...

There is single sound tone Signal Phone called as SN-1, but it is for only DC Voltage and AC product is not producing now. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check the information of the Products through "Website > Products > Products Group". 2. Please put inquiry through "Website > Customer Suppor...

The meaning of 15 and 25 is Output(W) of the Unit(Speaker). The more output is high, the more volume(dB) is high. SEN15 model is 108dB and SEN25 model is 115dB. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check the information of the Products through "Website > Products > Products Group". 2. Please put inquiry...

It is impossible to produce as the specification of external volume specification due to the body material of steel. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check the information of the Products through "Website > Products > Products Group". 2. Please put inquiry through "Website > Customer Support >...

In case of QLight's products having signal sound, it is impossible to use warning sound and melody by combining, because electronic components and circuits are different according to the specification of sound tone. Therefore you have to choose one sound tone. For reference, you can use warning sound(WS) and special warning sound(WP) combined and melody(WM) and alarm(WA) combin...

The external shape for these two models is similar, but there are the differences in size, internal Unit (Speaker) and output(volume). The number on model name shows output of the Unit. Output of SEHN25 is 108~115dB and SEHN50 is 115~120dB. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check the information of the Prod...

In case of SRN and SEN15/25 model in the Signal phone products, it is possible to produce as Ivory color. When you order, please designate Ivory color as option. Please process as below for additional inquiry and purchsing A. Online Purchasing Inquiry 1. Firstly check the information of the Products through "Website > Products > Products Group". 2. Please put inquir...