This 21w 4ft T8 LED daylight tube is the perfect replacement for the traditional fluorescent tubes.
Ventures Professional version is made of glass which prolongs light clarity whilst extending the average life of the tube to 50,000 hours. This is backed by Venture’s 5 year warranty. The tubes come with their own special starter.
When replacing fluorescent tubes that are run by electro magnetic ballasts you can just replace the fluorescent tube with the LED tube and the starter with the LED starter. No need for rewiring.
When replacing fluorescent tubes that are run by HF Electronic ballasts then the ballasts must be disconnected and the LED tubes connected directly to a 240v input.