What might this power adaptor be for?

A search for the model number return a mass of result, e.g.:

Apparently, a Tower VL35 3-in-1 vacuum?

Don't know. Any idea what the symbols directly above the "CE" represent, especially the one that looks like an incomplete pnp transistor?

From Google: <QUOTE>A 26V 0.5A (500mA) power supply is primarily used for charging cordless stick vacuum cleaners, specifically models from brands like Vytronix and Hoover, and for powering certain LED lighting systems, such as Balsamhill Christmas trees.Key Devices Using 26V 0.5A Power Supplies:Cordless Vacuums: Vytronix models (BCS01, NIBC22), Hoover H-Free (HF222RH, HF222UXL).LED Lighting: Balsamhill Christmas Trees.Other Potential Items: Small electronic products, generic, and

On 13 Jun 2026, Andy Burns wrote

Ah; thank you and Roger -- mystery solved.

I'd forgotten we'd gone through two or three light-duty cordless vacuums a few years ago.

Cheers, Harvey

On 13 Jun 2026, Roger Mills wrote

Thanks to you Andy -- I'd forgotten entirely about those (we went through a couple of light-duty stick vacuums some years back, before we found one that did what we wanted).

"gone through two or three" tells us all we need to know about cordless vacuum cleaners :-\

Short-circuit proof safety isolating transformer:

-- Richard

Thanks for the info.

On 13 Jun 2026, Abandoned Trolley wrote

Indeed; in general, though, I'm not in charge of that sort of purchase decision...

I have a power adaptor delivering 30V at 333ma which powers an old HP printer. So perhaps you once had an old printer to go with your power supply?

On 20 Jun 2026, Indy Jess John wrote

That could have been the case, but I think the posters who traced it to a (long-abandoned) cordless stick vacuum cleaner were correct.