Are these any good ??

[strange_days_uk]

Hi all,

Is this worth buying ?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=8022407564&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1

Anyone have any experiance with them at all ?

What do I do just put it in line betweem negative terminal and wiring going to it ?

Cheers, Simon..