Yesterday I was making up some leads. Last year I got a new light for my workbench and a new heat gun for Christmas. I had both plugged into a power board and when I use the heat gun on high the light bulb (28 watt thread type incandescent) fluctuates from normal to dull in a quick cyclic pattern. The heat gun is 2000W, so no bigger draw than a kettle I assume. My house has been rewired so I figure that is/should be fine. I figure its either an issue to do with the extension cord/power board (5m extension cord) or the heat gun. Any electricians out there have any ideas. And yes I know 28W is not an ideal work bench light but if you just tell your wife that you need a new light for the work area and your work area is also her art/craft area than you should expect a trendy not so useful light instead of a 500W portable utility light. I know that now.