I have an old table lamp that's imprinted "LEVITON / MADE IN USA / 660W 250V / LAMP HOLDER".
I'm used to lamps with stickers that specifically tell me what max-watt bulbs I can use, usually 60W, 75W, or 100W.
Why is this lamp printed "660W", and what's its actually safe, maximum-wattage bulb?
Photos below. There's a UL sticker, but otherwise nothing else is printed or stuck on the lamp sides or bottom.