How good are the DC adjustable powersupply from Ebay ?

[Blord]

I am looking for a cheap power supply. For powering lab lasers, charging batteries ( I have several 6V 4Ah NiCD cells without charger ), computerfan, etc.
On Ebay there are several unit for sale. How good are these psu ?
Are they accurate and durable or just garbage ?

eBay.be: YH-1502DD+ ADJUSTABLE VARIABLE DC POWER SUPPLY- 15V 2A (object 300492537773 eindtijd 13-dec-10 00:03:12 CET)

eBay.be: Bench Power Supply DC Regulated Adjustable 0-2A; 0-18V (object 220688757876 eindtijd 26-nov-10 19:25:29 CET)

 

[Garoq]

I own this one:

eBay.be: MASTECH VARIABLE DC POWER SUPPLY (HY1803D)0-18 V/ 0-3A (object 160507051390 eindtijd 22-nov-10 22:03:40 CET)

Works for me. I know some other members use this one too.

 

[DTR]

I own this one:

eBay.be: MASTECH VARIABLE DC POWER SUPPLY (HY1803D)0-18 V/ 0-3A (object 160507051390 eindtijd 22-nov-10 22:03:40 CET)

Works for me. I know some other members use this one too.

I have that unit as well and so far have not been disappointed with it. Not lost a single diode to it and direct drive with it all the time.

 

[Blord]

Thank you all. Good to know people think positive about it.

 

[spokanedavid]

I have been wanting to get a power supply but being fairly new to electronics i was not sure what i was looking for. I think now i i have alot better idea of what im going to be looking for.

 

[DTR]

I have actually been contemplating buying this one. I have had good luck with their 3A version but now that I am doing a lot of these dual driver setup's I need the ability to give over 3A to run the drivers off the supply.

MASTECH HY3006D DC POWER SUPPLY VARIABLE TO 30 V @ 6 A - eBay (item 230504084461 end time Nov-23-10 16:02:13 PST)