---
product_id: 43147438
title: "by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use"
brand: "truedark"
price: "221023CFA"
currency: XOF
in_stock: true
category: "True Dark"
url: https://www.desertcart.sn/products/43147438-by-dave-asprey-daylights-yellow-lenses-block-75-of-blue
store_origin: SN
region: Senegal
---

# Filters 99% UVA/UVB rays Blocks 75% blue light Lightweight aircraft-grade aluminum frame by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use

**Brand:** truedark
**Price:** 221023CFA
**Availability:** ✅ In Stock

## Summary

> 🕶️ See the day brighter, focus sharper, and sleep better — the future of blue light blocking is here!

## Quick Answers

- **What is this?** by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use by truedark
- **How much does it cost?** 221023CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/43147438-by-dave-asprey-daylights-yellow-lenses-block-75-of-blue)

## Best For

- truedark enthusiasts

## Why This Product

- Trusted truedark brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day Comfort:** Ultra-lightweight metal frame with spring hinges designed for extended wear without fatigue.
- • **Glare-Free Vision:** Polarized lenses reduce glare while preserving natural light for crystal-clear clarity.
- • **Blue Light Defense:** Blocks 75% of disruptive blue light to protect your focus and sleep cycle.
- • **Complete Protection:** Filters 99% of harmful UVA/UVB rays, perfect for indoor and outdoor use.
- • **Biohacked Performance:** Engineered with neuroscience and circadian biology to boost daytime alertness and reduce eye strain.

## Overview

TrueDark by Dave Asprey Daylights Elite glasses feature yellow lenses that block 75% of blue light and 99% of UVA/UVB rays, reducing eye strain and supporting natural circadian rhythms. Crafted with a lightweight aircraft-grade aluminum frame and polarized polycarbonate lenses, these glasses deliver durable, comfortable, and glare-free protection for heavy daytime screen use and artificial lighting environments.

## Description

Buy TrueDark by Dave Asprey | Daylights Elite | Blue Light Glasses for Women & Men, Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use and other Clothing, Shoes & Jewelry at desertcart.com. Our wide selection is eligible for free shipping and free returns.

## Features

- Block the blue light that disrupts focus and sleep. Perfect for: screen time, grocery runs, airports, and long workdays under LED and CFL lighting.
- Block 75% of junklight indoors, and 99% of UVA/UVB rays. Engineered to filter fatigue-causing wavelengths and let in the energizing light your brain needs to promote daytime alertness.
- Reduce Eye Strain & Support Focus: Reduces eye strain from long hours on screens while minimizing discomfort and sensitivity to artificial light. Supports lasting focus, less daytime fatigue, and encourages a natural balanced circadian rhythm for steady daytime clarity and better sleep.
- Durable Frame Design: Lightweight aircraft-grade aluminum frame with spring hinges and polarized lenses that reduce glare without distorting natural light. Frame Width 156mm | Lens 63mm x 37mm | Bridge 14mm | Arm 126mm. Built for comfort, quality, and everyday wear.
- Founded by Dave Asprey: TrueDark started from one problem: artificial light was wrecking Dave’s sleep. Cheap blue blockers weren’t cutting it. So the first ever lens system was built—using neuroscience, circadian biology, and decades of biohacking insight.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07262NGHN |
| ASIN  | B0GWV9JM7W |
| Age Range Description | Adult |
| Apparel Fabric Stretch | No Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | #135,461 in Health & Household ( See Top 100 in Health & Household ) #566 in Computer Blue Light Blocking Glasses |
| Brand | TrueDark |
| Color | Elite |
| Customer Reviews | 4.3 4.3 out of 5 stars (162) |
| Date First Available  | March 18, 2026 |
| Fit Type | Universal |
| Frame Material | Metal |
| Frame Material Type | Metal |
| Frame Type | Full Rim |
| Garment Size Country | United States |
| Included Components | Glasses Case, Microfiber Lens Cleaning Cloth |
| Item Shape | Square |
| Item Weight | 9.6 ounces |
| Lens Height | 41 |
| Lens Material Type | Polycarbonate |
| Manufacturer | Biohacked |
| Material | Metal, Polycarbonate |
| Pattern | Solid |
| Product Care Instructions | Clean glasses with a soft, dry cloth. Store in a protective case when not in use. |
| Special Features | Durable, Lightweight, Scratch-Resistant |
| Style Name | Elite |
| Target Audience | Teens, Men, Unisex Adult, Adults |
| UPC | 855948007020 |
| Unit Count | 1 Count |
| size | Adult |

## Images

![by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use - Image 1](https://m.media-amazon.com/images/I/51TiShaXr1L.jpg)
![by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use - Image 2](https://m.media-amazon.com/images/I/71A7wAw5-2L.jpg)
![by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use - Image 3](https://m.media-amazon.com/images/I/71eAnFJk6HL.jpg)
![by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use - Image 4](https://m.media-amazon.com/images/I/813jHngfGGL.jpg)
![by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use - Image 5](https://m.media-amazon.com/images/I/71IKQGATzGL.jpg)

## Available Options

This product comes in different **Lens Color, Color** options.

## Questions & Answers

**Q: Will TrueDark Daylights glasses help with migraines or light sensitivity?**
A: Many users with photophobia or light-triggered headaches find relief by reducing exposure to fatigue-causing wavelengths from screens and artificial lighting. Polarized lenses reduce glare and UVA/B filter provides additional protection.

**Q: Do I still need Sunsets or Twilights if I wear Daylights junklight blocking glasses all day?**
A: Yes. Each lens plays a unique role. Daylights filter 75% of blue light while letting in healthy blue for energy and focus. Sunsets help you ease naturally into evening, and Twilights block 99% of junklight to mimic darkness and support deep sleep.

**Q: What is Junklight and how can it affect me?**
A: Junklight is the artificial light from screens, LEDs, and overhead lighting. Your brain treats light like a signal—the wrong light at the wrong time of day throws your biology out of rhythm. The result? Junk sleep, junk energy, junk focus.

**Q: When is the best time to use Daylights glasses to block junklight?**
A: Wear Daylights after getting some natural sunlight in the morning. Aim for about 30 minutes of daylight first—then use Daylights to block junklight from screens, LEDs, CFLs, and other artificial sources throughout the day.

**Q: What percentage of blue light should I be blocking during the day?**
A: Your brain needs some blue wavelengths during the day to stay alert and energized. TrueDark Daylights target only the disruptive wavelengths (380–500nm), while still letting in the beneficial light that supports focus, mood, and energy.

## Frequently Bought Together

- TrueDark Daylights Amber Elite Blue Light Blocking Glasses to Reduce Eye Strain and UV Glare for Increased Energy - Men & Women, Computer Screen, Gaming, TV, Phone - by Dave Asprey
- TrueDark Twilights Elite Blue Light Blocking Glasses to Reduce Eye Strain and UV Glare for Better Sleep - Men & Women, Computer Screen, Gaming, TV, Phone - by Dave Asprey
- TrueDark Twilights Gradient Sunset Fairlane Blue Light Blocking Glasses to Reduce Eye Strain for Better Sleep - Men & Women, Computer Screen, Gaming, TV, Phone - by Dave Asprey

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**Shop now:** [https://www.desertcart.sn/products/43147438-by-dave-asprey-daylights-yellow-lenses-block-75-of-blue](https://www.desertcart.sn/products/43147438-by-dave-asprey-daylights-yellow-lenses-block-75-of-blue)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-10*