About technology, travel and lifestyle, by Tom Worthington.
Friday, January 11, 2008
Solar garden lights an environmental hazard?
According to a pamphlet I picked up at the hardware store, the rechargable Nickel-cadmium (Ni-Cd) batteries in many solar powered garden lights only last 2 years. Apart from not represeting good value for money, Cadmium is a toxic heavy metal. Ideally a wired light should be used, but failing that, using nickel metal hydride (NiMH) "Pre Charged" would be better.