Choosing the Right Power Supply for 6-7 UV 9W Lamps with 15-min Continuous Operation

Hello.

I would like to build a device to which 6-7 UV lamps will be connected, but I do not know what power supply should be used so that it does not burn and burn the lamps at the same time.

Below I have written the specifications of both the lamp and the power supply that was originally used to operate one of them. A power supply that would keep 6 such lamps in continuous operation for about 15 minutes would be necessary.

Bulb electrical characteristics:
Power: 9W
Technical lamp power: 8.6 W
Lamp voltage: 60V
Lamp current: 0.17 A

Electrical characteristics of the original single lamp power supply:
AC 230V 50Hz 50VA

I do not know if this information will be helpful, but the current power supply that supports one lamp heats up very much after about 15 minutes and the manufacturer recommends to turn it off after a maximum of 20 minutes of work to cool down.

The power supply supporting 6 such bulbs would work about 15 minutes in a row.

I would be very grateful for your help.

The lamp looks like (photo); it has 2 electrodes, it has 4, electrodes like a classic fluorescent lamp

I understand that this is about this information:
G23 base
2-pin cap information
2xT12 bubble

As requested, adds a photo of the bulb

It is a classic fluorescent lamp with an integrated ignitor. You only need a choke. Of course, the right layout.
Once again, the 230V 50W power supply supplies one 9W fluorescent lamp and this is the case at the factory?

That's exactly right Freddy. The 230V 50W power supply originally powers one 9W fluorescent lamp.
You need a sailer with parameters that would power 6-7 such lamps. What should I buy?

This is something wrong, one 9W fluorescent lamp should have a 9W power supply.
I have a lamp with two such fluorescent lamps and a 20W power supply - it lights up for several hours non-stop.
Show a photo of this power supply.

Noostro wrote:

I understand that this is about this information:
G23 base
2-pin cap information
2xT12 bubble

As requested, adds a photo of the bulb

This is a PL 9W lamp (not a bulb). Lamps of this type are made in two versions - for an inductive ballast (with a starter in the cap) and for an electronic ballast (no starter in the cap, instead of a capacitor).
An example of a magnetic ballast for two lamps: https://www.tim.pl/statecznik-magnetyczny-do-swietlowek-10-13w-2x7-9w-230v-sb13-cb0945

If you want to buy, use the keywords in the search engine selected from among:
ballast ballast 9W PL magnetic inductive electronic price

Noostro wrote:

A power supply capable of holding 6 such lamps would be necessary

If it is to be low-cost, maybe the cheapest one is to buy 2 lamps for curing nail polish - for PLN 60 (+ delivery cost) you have 8 UV lamps with ballasts

This is exactly what the power supply looks like. It took a while to answer because I had to take a photo


These nail hardening lamps are not a stupid idea as long as the power supply used in them is enough for me. As for the lamps themselves, the ones I write about are therapeutic (exactly UVB), so the UV nail polish would not be useful for me anyway, but if the power supply was enough, I can try it.

Noostro wrote:

This is exactly what the power supply looks like.

And is the lamp connected directly to it? I do not believe something, and I especially believe in these 50W (probably something else in this device is powered)

Noostro wrote:

These nail hardening lamps are not a stupid idea as long as the power supply used in them is enough for me.

Enough - why wouldn't it be enough?

Noostro wrote:

As for the lamps themselves, the ones I write about are healing (exactly UVB), so the UV nails from the nails would not be useful for me anyway

Also UVB for nails, unless yours must have a specific UVB section. Is the manufacturer of these lamps reputable?

Jdubowski is exactly the medical lamp (fluorescent) Philips PL-S 9W / 01 / 2P UVB 311nm.

As for the manufacturer itself, it is so renowned in the medical industry, it is called Kernel.

The device itself, into which this fluorescent lamp is inserted and connected to this power supply, looks exactly like this:

jdubowski wrote:

And is the lamp connected directly to it? I do not believe something, and I especially believe in these 50W (probably something else in this device is powered)

Apart from a small display whose only function is to measure the time to the end of operation, nothing else is powered there. The manufacturer recommends a one-time operation not longer than 20 minutes due to the possibility of burning the power supply and it is actually hot after 15-20 minutes. Not warm, hot.
Unfortunately, I do not have any additional data about the power supply, apart from the sticker on it, the photo of which I have inserted. And now I do not know if this lamp (fluorescent) is extremely demanding or if the power supply is really bloody weak.

Noostro wrote:

And now I do not know if this lamp (fluorescent lamp) is extremely demanding

It is not - electrically it is an ordinary PL-S 9W.

jdubowski wrote:

the cheapest one is to buy 2 lamps for curing nail polish - for PLN 60 (+ delivery cost) you have 8 UV lamps with ballasts

so do you think that I should buy two lamps and the power supplies from them are enough for me to keep 6 lamps for a maximum of 15 minutes?
By the way, thank you very much for your interest and help.

Noostro wrote:

it is a medical lamp (fluorescent tube) Philips PL-S 9W / 01 / 2P

From what I browsed for a moment, the above lamps are probably working with induction ballasts, so the solution with ballasts suggested in post # 7 will work 100% (one for two lamps). As for electronic ballasts (and such are the majority of fixtures for hardening "claws") you have to try it yourself if there will be no ignition problems (or google longer and better than me ...)

Thanks for checking.
Will follow your advice. As for the ballasts from post # 7, I already have brightness, one ballast for 2 lamps and it will work, I will remember
I will also buy a nail curing lamp and check with it too. Only write to me if you can, if it works, how many lamps will such a standard "claw" kit hold? 2? 3?

Noostro wrote:

Only write to me if you can, if it works, how many lamps will such a standard "claw" kit hold? 2? 3?

Most of the "claw" fittings are for 4 PL-S 9W lamps.

Thanks a lot. I will order and check. In some time I will write whether it worked, if not, it will apply to the solution from post # 7.
Best regards.

I bought a UV lamp with four fluorescent lamps to cure the gel on the nails. Unfortunately, the Philips UVB NB lamp does not work. It turns out that the nail lamps use G23 fluorescent lamps without an integrated starter with electronic ballast. Do you know how to convert the system to work?

Edit: fluorescent lamp blinks / blinks but does not light up.
Below I am sending a photo of the PCB from the nail lamp.