im looking to finish my electrolysis at home.
does the D-901 have any significant downsides over the D-998?

from
https://www.alibaba.com/product-detail/2025-New-Professional-Portable-Salon-permanent_1601491330856.html?spm=a2700.galleryofferlist.normal_offer.d_image.6b1f13a0DKAKv3&priceId=bdf544950cd24ccb96f8f4f68b17f5e9
and
https://www.alibaba.com/product-detail/New-Pro-Electric-Hair-Removal-Tweezers_1601577191363.html?spm=a2700.galleryofferlist.normal_offer.d_image.416b13a0o7gzYx&priceId=cd34cdf84f1749958aa2869ad9324462