Are You Still Struggling with Photobleaching? These May Help to Release Your Concerns!

Author : joan

Update time : 2025-01-07 13:47:02

Have you ever encountered photobleaching during your cannabis cultivation ? if so, how much do you know about photobleaching? Don't hesitate to stop and follow us to leam more about photobleaching.

What is Photobleaching?

Photobleaching is simply what we can observe: the literal bleaching of floral buds

Photobleaching doesn't announce ilself with early morphological cues in the leaves. l

happens when you look at the top of the cannabis canopy and discover that all of the

upper inflorescences/colas/floral buds are bleached white

Why Photobleaching Happens?

As we all know, higher light intensilies bring higher yields. Photobleaching occurs a

800 micromoles or lower with lighting rich in red light. Lights with a badly balanced

oroad spectrum will tngger photobleaching.

Does Photobleaching Impact Crop Yield and Quality?

Cannabis flowers don't rely on hioh levels oflocal photosynthesis to put on mass.

therefore, photobleaching shouldn't have an enormous impact on yield and quality, bu

there may be a correlation.

How to Avoid Photobleaching?

If photobleaching occurs in the middle of a flower cycle, the only way is to reduce light

intensitly to stop what's undenvay. But when you reduce intensity, you're also reducing

yield. With the right light quality, you can avoid photobleaching even at light intensities

reaching 2,500 PPFD. Hence, the best way to avoid photobleaching is to use the right

ight with a more balanced broad spectrum.

Previous : 5 Critical Errors New Growers Must Avoid with LED Grow Lights

Next : How Far Should Grow Lights Be from Plants ?

Case Study: Why an HPS Grower Switched to Shark‑2600 – Not for Savings, but for Even Light from Top to Bottom

Jun .03.2026

A Pacific Northwest facility ran 1000W HPS for five years. Solid yields, but shadows left lower branches behind, and HPS lacked blue/far‑red. Other LEDs dropped THC or created hot spots.
Then Shark‑2600. Not for the 24% power savings – for the linear bar design and full‑cycle FIF spectrum. Fixed the shadows. Improved lower canopy density.
Result: Same yield, same THC. 8–10% denser lower buds.
Below: The 5 questions they asked – answered with test data.

What Size Grow Light Do You REALLY Need? Stop Asking Watts – Use PPF, PPFD & DLI Instead

May .27.2026

Stop guessing watts. Learn how to match grow lights to your greenhouse canopy — calculate PPF needed, understand PPFD & PPE. Boost yield per dollar. For serious flower and medicinal plant producers. Use PPFD, DLI & PPE to pick the right grow light size, distance, and efficiency. Works for greenhouse, vertical farms and home tents and . Start growing smarter today.

HortiBest LED Grow Lights-Development History

May .19.2026

We understand every grower wants maximum returns from your hard work.
We design our grow lights purely to serve your planting benefits. Precise spectrum boosts crop growth, cuts power costs, extends service life and lifts your final yields.
No fancy gimmicks, only practical lighting solutions that truly add value to your farm and maximize your profits.
HortiBest, Light the world, light the life.

1000W vs 400W Grow Light: Which One Fits Your Grow?

May .07.2026

Wasting money on the wrong greenhouse grow light? Higher wattage doesn’t always mean better harvests.
400W is perfect for small greenhouses, hobby grows and specialty crops—lower electric bills, balanced light with zero leaf burn.
1000W fits commercial large greenhouses and dense canopies, bringing stronger light penetration, faster blooming and bigger profits that easily cover power costs.
Find your perfect match in one click.