Brand new lamp has me stumped
A1 doesn't make any sense. But in general there are 3-way LED bulbs to fit any size and they don't use much power. For example, this Cree 40W/50W/100W equivalent LED bulb:



fits an E26 socket and actual power used is 5W/9W/17W.

Equivalent power is often listed first. I think that is partially inertia/backwards compatibility - if you used to have a 30/70/100 bulb then that's what you will look for in a replacement, since bulbs have (generally) only recently been listed by the light they produce - lumens - instead of the power they use - watts. I think it is also partly "marketing" - people like to get more for their money, and 30/70/100 sounds like a lot more than 5/9/17, even though what you are really trying to get for your money is light, not power usage (which you actually want to minimize).