📚 Knowledge base

LED Spectrum Simulator: Compare Your Grow Light to the McCree Curve

Discover the true meaning of a full spectrum grow light and quantum board. Learn about the McCree c…

Temperature in a growbox: why it's measured at three points and why mixing fans are needed

Why a single thermometer in a grow tent lies, why you should measure temperature at three points, a…

Plant Photosynthesis Simulator – FvCB Gas Exchange Model

Interactive photosynthesis simulator based on the FvCB and Medlyn models. Calculate net CO₂ assimil…

Interactive Phytolamp Spectrum Calculator: Designing the Perfect Light with OSRAM LEDs

Looking for a DIY led grow light calculator? Use our interactive spectrum calculator to design the …

Simulation of parallel connection of LEDs to the driver

Why does one channel hog all the current while the other dims when different LEDs are connected in …

How to Choose a Driver for High-Power LEDs

I explain how to properly select an LED driver for high-power LEDs (1W, 3W, 5W) and avoid burning t…

Acrich technology from Seoul Semiconductor or LEDs 220 volt

The history of Acrich technology from Seoul Semiconductor. A detailed analysis of direct-on-board (…

Does SunLike Technology by Seoul Semiconductor Revolutionize Plant Lighting?

Is the solar spectrum worth the premium in 2026? An honest review of Seoul Semiconductor's SunLike …

Where Did Samsung's Red LEDs Go? Making Sense of the LH351H 660nm Phase-Out

Where did the highly popular Samsung LH351H 660nm red LEDs go? We break down the real reasons behin…

Resistor Color Code: Online Calculator

Need to find a resistor's value quickly? Use our accurate resistor color code calculator for 4 and …

Power supply (or transformerless LED driver) on a quenching capacitor, calculation

Discover how a transformerless capacitive dropper power supply works. Learn to calculate a reliable…