Wattage is how much electrical power something uses or produces, counted in watts. A light bulb, a hairdryer, a speaker, a microwave all have a wattage: "What wattage is that bulb?" "Sixty watts." So wattage is the measurement, and watts are the units — the same relationship as mileage and miles, or voltage and volts.

Wattage瓦數 is指的是 how much electrical power something uses or produces某個東西用掉或產生多少電力，counted in watts以瓦特來計算。 A light bulb, a hairdryer, a speaker, a microwave電燈泡、吹風機、喇叭、微波爐 all have a wattage都有瓦數："What wattage is that bulb?" "Sixty watts."「這燈泡是幾瓦？」「六十瓦。」 So wattage is the measurement所以wattage是那個測量值，and watts are the unitswatts才是單位——the same relationship as mileage and miles就跟mileage（里程數）和miles（英里）的關係一樣，or voltage and volts或voltage（電壓）和volts（伏特）的關係一樣。

In everyday life it comes down to two practical questions. For things that use electricity, high wattage means it eats more power (and costs more to run, and usually gets hotter or brighter). For things that produce it — a speaker, an amplifier — high wattage means it can go louder. That is why shop assistants and product boxes talk in wattage.

In everyday life在日常生活中 it comes down to重點就是 two practical questions兩個實際的問題。 For things that use electricity對會用電的東西來說, high wattage瓦數高 means it eats more power就代表它更耗電 (and costs more to run, and usually gets hotter or brighter)（用起來也更貴，通常也更燙或更亮）。 For things that produce it對會產生電力的東西來說 — a speaker, an amplifier像喇叭、擴大機 — high wattage瓦數高 means it can go louder就代表能開得更大聲。 That is why這就是為什麼 shop assistants and product boxes店員和產品包裝 talk in wattage會用瓦數來講。

The word is a little bit technical but not difficult; ordinary people say it without feeling clever. You will often meet it in phrases like "a high-wattage bulb", "low-wattage appliances", "check the wattage before you plug it in".

The word這個字 is a little bit technical but not difficult有點技術性但不難；ordinary people一般人 say it without feeling clever講的時候也不會覺得自己很厲害。 You will often meet it你常會在這些說法裡看到它 in phrases like像是 "a high-wattage bulb"「高瓦數的燈泡」, "low-wattage appliances"「低瓦數的電器」, "check the wattage before you plug it in"「插電前先看一下瓦數」。

English also uses it playfully for star quality: "a high-wattage smile", "an actor of enormous wattage" — meaning shining, dazzling, drawing every eye. That use borrows from the light bulb, and it belongs to journalism and reviews, not to normal talk.

English英文 also uses it playfully for star quality也會俏皮地用它來形容明星魅力："a high-wattage smile"「超有魅力的笑容」, "an actor of enormous wattage"「氣場超強的演員」 — meaning shining, dazzling, drawing every eye意思是閃亮、耀眼、讓大家的目光都聚過去。 That use這種用法 borrows from the light bulb是借用燈泡的意象，and it belongs to journalism and reviews比較常出現在新聞和評論裡，not to normal talk不是日常口語會用的。