Yes they will work but VASTLY overpriced and over-rated for what you need. These are rated at 850volts DC. All you need are something rated at 50 volts maximum - you'll find 100 volts or so pretty standard and cost less than £1 each. Something like this, though you'll find them much cheaper at the likes of Maplins
jackrae:
Yes they will work but VASTLY overpriced and over-rated for what you need.
As long as they will suit the job, I will have to use them. Availability of choice in Africa is a bit limited, and we have a huge government surcharge on imported goods.
Exchange rates at the moment are about 1:11, so our R13.00 is about £1.18