电笔

电笔	diàn bǐ	electrician's test light; voltage tester
电	diàn	lightning / electricity / electric (bound form) / to get (or give) an electric shock / phone call or telegram etc / to send via telephone or telegram etc
笔	bǐ	writing brush; writing implement (pen, pencil etc) (CL:支,枝) / brushstroke; stroke (in painting or calligraphy) / (bound form) style of writing; literary manner; technique of brushwork / (classifier) stroke of a Chinese character / (classifier) sum of money; financial transaction; piece of business / (literary) to write (with a brush or pen)