UV light lies in the invisible spectrum hence the name ‘black light’.

UV light is usually invisible, but depending on the conditions it can sometimes be seen down to about 310nm.

UVA (315 – 400nm) is commonly used for tanning, aquarium lighting, inspection equipment, glow lights, entertainment uses etc.

UV light can be seen by bees – it reflects off flower petals and the bees use it to direct themselves to the pollen.

It is germicidal and can be used for air sterilisation. It penetrates the membrane of germs, bacteria, mould and dust mites, eliminating them.

The lifetime of traditional mercury lamps is just 2000 hours - UV LED’s have a lifetime of at least 20,000 hours.