FAQ

 

Back to FAQ overview

What is Vf?

 

Vf is the term used for the LEDs forward voltage. It is the voltage required to activate the LED and produce the output specified, assuming that it is drawing the recommended current.

Choose your type of question

• 1. General questions
• 2. Industry Standards
• 3. Dimming with LEDs
• 4. LED light fittings
• 5. Life and Light output
• 6. The Environment
• 7. Retrofit Lamps
• 8. How do LEDs produce light
• 9. White light and colour
• 10. Technical FAQs
• 11. Rejected and Misc questions + Medical