In a translation of the second Harry Potter book:
"All Harry's spellbooks, wand, cauldron and top-of-the-range Nimbus 2000 broomstick had been locked in a cupboard under the stairs by Uncle Vernon the instant Harry had come home."
哈利刚一到家,弗农姨父就把他的咒语书、魔杖、长袍、坩埚和最高级的光轮2000锁进了楼梯下那又小又暗 的柜子里
It seems like this translation is well accepted: http://zh.harrypotter.wikia.com/wiki/%E5%85%89%E8%BD%AE2000?variant=zh
Google Translate's answer of 'light wheel' is unhelpful.
Is "光轮" just a transliteration or does it have extra meaning?