# Why a CFL lights up when I touch it?

When there is a very low voltage (AC), even for a compact fluorescent lamp (CFL), it glows very dim (orangish in color) at the beginning of the glass but when I hold the glass just for a second, it starts glowing as usual (generally white in color, don't know what your's is) though a very little bit dimmer than its original capacity. So, I want to know why it happens, i.e. it starts glowing at the same voltage when we touch it (the one I am trying is rated 220V, AC Current freq here is 50Hz, power required doesn't matter as it happens with all of them, voltage is ~30 in my case but it may differ in yours). If it's related to body-heat (because I think so), why does it just keeps glowing continuously even if we don't touch it after that?

• Welcome to EE.SE. People won't downvote "cause you haven't faced it" but they will downvote if your question isn't clear. Add a photo of the lamp and show where you are touching it. You might also state the voltage rating of the lamp and the voltage during the test. Jan 31, 2019 at 17:25
• Sorry mate, can't add an image. Don't have enough reputation points. And as far as the rating is concerned, I am just gonna edit it in a moment Jan 31, 2019 at 17:29
• I have actually seen something similar - an off CFL flashing when I touch it. I explain it to myself wit static electricity... Jan 31, 2019 at 17:32
• What do you mean by "voltage is ~30"? What voltage is this, and where are you measuring it? At one point you say "hold the glass" and at another point you say "touch it"...these are different, can you clarify? Jan 31, 2019 at 18:13
• By '~', I meant 'almost' and unit is 'Volts'. And sorry for unclarified question, if you say so. When I say 'hold the glass' or 'touch it', I mean 'touch glass portion for a few moments not an instant'. BTW, I'd go with your answer @mike65535. Jan 31, 2019 at 18:32