Cool White 4000k T5 Lamp 35w

T5 Triphosphor lamps give a better colour rendering than standard halophosphor lamps - they score 80-89Ra in the colour rendering index (old T8 and T12 lamps score 54-67Ra). T5 Triphosphor lamps are approximately 40% smaller than T8 lamps and almost 60% smaller than T12 lamps. T5 lamps have a G5 base (bi-pin with 5 mm spacing), while T8 and T12 lamps use a G13 base.

T5 tubes operate at a higher temperature for the purposes of regulating the mercury vapour pressure in the tube. This makes T5 lamps both electrically and physically incompatible with T8 and T12 lamps. These differences in dimension prevent T5 lamps from being used as replacements for T8 and T12 lamps.

So if your light fixture uses T5 lamps you will get long life, good colour rendering and flicker-free operation.

Who are Radium? For more than 100 years the German company Radium Lampenwerk GmbH have produced high quality lamps for commercial and domestic use. They are committed to protecting the environment both at their production facilities and through promotion of energy efficient lighting.

Radium - you can buy cheaper but you will struggle to match the quality.

Please note due to the fragility of this particular lamp we are unable to ship these in small quantities.

You can order this lamp in box quantities of 25.

However if you are purchasing a T5 lamp to use with a fitting (which you have purchased from our website) we can ship this easily as it will be packed in with the light and should arrive intact.