19 July 2021
’’ Are you buying LED Lights or LED Fairytales?’’
The truths and falsehoods in the LED world Ledgnd's brand independent specialists notice that suppliers…
4 May 2021
Is dynamic controlled LED our future when it comes to additional lights for the horticulture?
Example: Phalaenopsis grower Jan has bought a full-LED installation with 5% blue and 95% red…
22 February 2021
Output (PPFD) goes down after heating up LEDs
After the LEDs are on for 15 minutes, the output (PPFD) drops. This is due…
11 February 2021
Ledgnd responds to article Urban AG News: The Value of Third-Party Verification For Horticultural Lighting
In an article posted on Urban AG News, the increasing importance and value of third-party…
10 February 2021
Ledgnd publishes third installment of series: “The Ledgnd Of”
In the series "The Ledgnd Of," Ledgnd provides clarification for growers regarding tricky terms used…
10 February 2021
Ledgnd publishes first episode of series: “The Ledgnd Of”
In the series "The Ledgnd Of", Ledgnd provides clarification for growers regarding tricky terms used…
4 January 2021
Micromol (μmol/s), PPF, PPFD
Micromole μmol/s (micromole) is the unit in which P.A.R. is expressed. This unit indicates how…
4 January 2021
The Daily Light integral
DLI The Daily Light Integral (DLI) is a tool to measure the total amount of…
19 October 2020
P.A.R. (Photosynthetic Active Radiation)
What is P.A.R? Plants and people have a completely different view of light. People mainly…