Pet Worx LED Lamp 60cm 12 Month Warranty 60cm Led 24 Watt 6500k (Ideal for planted tanks) The Pet Works LED Light range is 6500k which is ideal for planted tanks and for obtaining good growth and lush foliage. The LED light will produce a blue hue and using it with fish will also help to highlight colours of fish as well. LED’s produce a bright light as well.