Blog
Mystery Chicken: Revealing the Color Rendering Index!
Picture this: you’re at the grocery store, eyeing the chicken fillets on the shelf. The meat looks fresh and pink, but when you place it in your cart, something strange happens—the color transforms into a more yellowish, bland hue. Intrigued, I decided to investigate.
Understanding what is a PAR Meter and why it’s an essential tool.
PAR meters are used to measure light from the Sun or Grow Lights to ensure agricultural plants are receiving enough light for health development and growth.
Light Meter Distance to Light Source
Our users ask if the distance between your meter and the light source should be considered when measuring your light. It depends on what you are measuring.
Untangling the Differences Between PAR, PPF, PPFD, and PFD
Greenhouse and horticultural professionals encounter various terms related to light measurement. This article discusses PAR, PPF, PPFD, and PFD. These terms have been used interchangeably in literature and can confuse. We want to clear this up once and for all.
The Mighty Chlorophyll Molecule
Chlorophyll, besides water, is perhaps the most essential molecule for life on this planet. Everything that we eat, everything that sustains us is derived from this mighty molecule.
Cosine Correction, LUX and Light Meters
Cosine Correction is a term often encountered when working with light meters. In this article, we aim to explain this term by addressing everything you wanted to know about Cosine Correction.
What Is Photomorphogenesis? It Is a Sibling to Photosynthesis
Plants use light for photosynthesis, but there is another aspect to light that is important for plants – it’s called Photomorphogenesis, or how plants use light to grow and change form.
Photosynthesis: What, Where, How and Why?
What is photosynthesis? For many, it’s something we’ve learned or heard about, but the details have escaped us over the years. So, we thought it might be helpful to review the salient points and terminology of this amazing process for you.
What is Cyanosis Observation Index (COI) ? 1 new measurement
What is Cyanosis? Inadequate lighting in medical settings can impede a vital visual diagnosis of the skin, called Cyanosis. So in this article we will discuss a crucial light measurement called the Cyanosis Observation Index (COI), used to measure your light’s ability to display patient skin colors accurately.
Flicker and Other Temporal Lighting Artifacts: What is TLA?
What is TLA or Temporal Lighting Artifacts? They are mostly visual abnormalities or anomalies caused by pulsating or flickering lights. Most times it’s hardly noticeable but it can have annoying side effects and even cause catastrophic events. Here we talk about the three well-discussed TLA situations
Handbook Series
The Flicker Handbook
Everything thing you need to know about Flicker, an insidious, potentially serious lighting artifact impacting visual safety for public places like hospitals, offices, libraries, and more...
About UPRtek
United Power Research and Technology
UPRtek (est. 2010) is a manufacturer of portable, high-precision light measurement instruments; Handheld Spectrometers, PAR meters, Spectroradiometers, Light Calibration Solutions.
UPRtek HQ, R&D and manufacturing are all based out of Taiwan, with Worldwide representation through our certified Global Resellers.
UPRTEK AT TOUCH TAIWAN 2025 – DISCOVER THE LATEST IN LIGHT MEASUREMENT TECHNOLOGY
Join Us at Booth L412 | April 16-18, 2025 | Taipei Nangang Exhibition Center
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