Yes, Blackle Search works, but its energy-saving effectiveness depends entirely on your monitor’s display technology. While it was highly heavily criticized during its launch for being ineffective on standard screens of that era, modern display advancements have made the concept much more viable. How Blackle Works
Launched in 2007 by Heap Media, Blackle is a custom search engine powered by Google. It functions identically to Google but features a predominantly black background with white text. The concept stemmed from a theory that a black screen requires less power (roughly 59 watts) to display than an all-white page (around 74 watts). Does It Actually Save Energy?
The actual energy savings vary dramatically depending on what type of screen you are using to browse: Blackle, the green Google – Kotori Technologies
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