我是一千瓦的电灯泡
[wŏ shì yī qiān wă de diàn dēng pào]
This refers to oneself as a bright but redundant presence. In China, 'being an electric light bulb' is a term for someone playing the role of the third wheel when a couple gets together. The number 1kw just emphasizes that this unwanted person's existence can't be ignored, being very conspicuous yet awkwardly unnecessary at the same time.