I have bought Homage Vision 1000 (600 Watts) along with a Phoenix 150A battery last month. I have connected my bedroom and TV lounge with this UPS. The appliances running on this UPS in my bedroom are, a fan, a tube-light, a router, and a laptop. While in TV lounge it is connected to a fan and a tube-light only. A 600 Watt UPS can easily bear this load as the load bar on Homage LCD shows only one bar out of four (minimum load).
The tube-light in TV lounge is without starter i.e an electronic choke tube-light. Now the problem is that whenever the main supply i.e WAPDA is turned off and the load is taken by UPS, then this tube-light start flickering. Its light also dims. And when you switch on TV lounge's fan then this tube-light further dims. While in my bedroom there is no such problem. The tube-light is very bright and it remains bright even when the fan and laptop are switched on.
What can be the problem? Can any one please suggest me a solution?