|
May I suggest, as an alternative, them getting a toothbrush that runs on regular batteries, like:
https://www.amazon.co.uk/Oral-B-Advance-Power-Battery-Toothbrush-x/dp/B0036TH5VO/
for use when travelling. It depends on how they work it, but arguably they'd only need one base unit, and this will be cheaper than a transformer. No bells & whistles like bluetooth or timing stutters etc., but it will do the job, and power is (obviously) no problem - just buy more batteries locally. This is exactly what I do when travelling outside Europe (etc).
But to answer your question you need a 110 TO 220 transformer. 110 input; 220 output. I imagine either of those you suggest would work |
|