We, Stwol Co.,Ltd, have developed Street Light Controller & Security Light Controller operated by GPS for the first time. Our GPS Street & Security Light Controller is an innovative item which is different with the existing controllers by CPU Timer and Light Sensor totally. We have a patent for this GPS system.

We produce the following products which are operated by GPS.
- Street light controller
- Security light controller
- Advertisement board light controller
-garden light controller
-flight warning light controller
-and others by customer's request

The features of our products are as follows.
1) Our products always receive the information of the location(longitude, latitude, and altitude) and time from four GPS satellites at least. Therefore, on/off control of the light is punctual, safe and permanent.
2). The products can be installed at any place on earth thanks to GPS satellites. After installation them, there happens few additional cost in managing the lighting system.
3) They can reduce the complaints of the citizen by operating street lights and security lights on time.