Many of us spend endless hours indoors, at desks, in meetings, or in front of screens, often without enough daylight. This lack of natural light can leave us feeling sluggish, blue, or even disrupt our sleep patterns. In winter, these effects are even stronger, and for those working in windowless offices, the problem is constant.
This is where light therapy lamps come in: they mimic the sun’s natural brightness and warmth to support our circadian rhythms, help lift mood, boost energy, and improve sleep quality. Amber Leong created Circadian Optics after a personal battle with darkness, both literal and emotional. So she decided to build something better: a lamp that looked stylish, fit modern life, and offered the therapeutic benefits of full-spectrum light without harsh UV rays.
On Shark Tank Season 11, Episode 2, Amber sought $750,000 for a 10% stake. She shared her mission and how light therapy could transform everyday life. By episode’s end, she’d secured an offer, and the world got a brighter solution.
Circadian Optics Net Worth Shark Tank Update 2025
Amber was looking for an investment of $750k in exchange for 10% equity in the company. At the time of the episode, she valued her company at $7.5 million. Amber successfully secured a deal with Mark and Lori for an investment of $750k for 20% equity in the company. The investment adjusted the company’s net worth to around $3.75 million. After the show was aired, the company experienced a good boost in exposure. As per my rough estimate, the current net worth of Circadian Optics is around $5.6 million.
Shark(s) name
Offer & Demand
Counteroffer
Accepted?
Barbara Corcoran and Kevin
$750,000 for 20% equity
N/A
No
Lori Greiner and Mark
$750,000 for 20% equity plus $50,000 for Amber’s parents
N/A
Yes
Kevin O’Leary
Out
N/A
N/A
Rohan Oza
Out
N/A
N/A
Mark Cuban
Out
N/A
N/A
Amber Leong Backstory + Their Initial Pitch
Amber’s journey began in a small Malaysian village with loving parents who scraped together the funds to send her to America. Facing Minnesota’s long, dark winters, she struggled with mood dips and fatigue until she discovered light therapy. But the lamps she found were plain and awkwardly shaped. She believed she could build a lamp that was both beautiful and effective, and so Circadian Optics was born.
Early on, she faced the challenges any startup meets: designing a lamp that packed full-spectrum LEDs into a classy, compact design; sourcing parts; manufacturing; and managing customer service. She focused on online sales, building a following through Amazon and word of mouth. By the time she arrived on Shark Tank, Circadian Optics had already pulled in $4 million in revenue with a strong 70% gross margin, proof of her product’s appeal.
In her pitch, Amber shared the science behind circadian rhythms, demonstrated the lamp’s light quality, and shared heartfelt comments about how much better she felt working under its glow. She asked for $750,000 for a 10% share, valuing her company at $7.5 million. The Sharks were moved, especially Mark and Lori, by her story, sales figures, and the elegant lamp design.
Queries + Shark’s Responses, and Final Deal
Kevin O’Leary opened with a sharp question: “How do you plan to get me back my money?” Amber replied simply that she would use his investment to scale inventory and expand retail presence.
Mark Cuban pressed further, asking about margins. Amber confirmed a healthy 70% margin. That excited Mark; he saw a profitable, scalable business.
Barbara asked about sales channels; Amber confirmed she was selling direct‑to‑consumer online, mainly through Amazon.
Rohan Oza praised Amber’s passion but said he couldn’t add value and dropped out quietly.
Barbara and Kevin then teamed up, matching Mark and Lori’s terms: $750,000 for 20%. But Mark and Lori sweetened their offer by including $50,000 as a gift to Amber’s parents, recognizing their sacrifices. Amber accepted.
Mark and Lori each took a 10% stake in the company, while Amber kept the remaining 80%. Kevin congratulated her, saying her pitch was one of the best he’s ever heard.
Circadian Optics lamps deliver full‑spectrum light, free of UV, in attractive designs that fit desktops and nightstands. They include models like the Lumos and Lumine, priced between $60–$70 on their official site based in Minneapolis, MN. Amazon also carries their line, with thousands of reviews praising improved mood, focus, and sleep. The lamps are battery‑operated or plug‑in, making them easy to use anywhere.
The company’s sleek Shopify site continues to offer its full line as of today. Pricing remains mid‑range, and there are no major offline partnerships yet; they remain a digitally native brand.
What Happened To The Circadian Optics After Shark Tank?
After Shark Tank aired, sales surged. By 2022, Circadian Optics hit $4 million in annual revenue. Lifetime sales at that point topped $7.4 million. Profit margins were strong, Mark and Lori heard Amber say 70% gross margin, and her 2022 profits were around $1.3 million. Projections for 2025 put revenue at $5.6 million. In interviews, Amber expressed that she pursued a retail partner to help expand offline reach.
After Shark Tank, Amber briefly stayed with the company until December 2021, when Thrasio acquired Circadian Optics. They handled the brand until mid‑2022, when online presence tapered, social media went quiet, and the Shopify site switched to Amazon‑only sales. Amber moved on, joining General Mills’ venture team, and even launched a new company, Nocturne, in early 2022.
Still, the Circadian Optics brand continues to live on Amazon. Some listings (like the Lumos 2.0) occasionally sell out. While the company no longer publicly shares revenue, all signs point to steady, direct‑to‑consumer sales and healthy margins.
Circadian Optics brightened its future both on and off Shark Tank. Amber Leong pitched a problem many quietly face: living without sunlight in dark offices, which can hurt mood and sleep. Her elegant, effective lamp caught the Sharks’ attention and led to a $750,000 offer from Mark and Lori, including a touching bonus for her parents. Though the deal wasn’t officially closed, the exposure led to $4 million in annual revenue by 2022 and likely higher since.
After acquisition by Thrasio and Amber’s pivot to new ventures, the brand continues to light up homes via Amazon. Margin‑rich, thoughtfully designed, and anchored in science and personal story, Circadian Optics remains a bright example of how a heartfelt idea can shine and be profitable too.
Hey, I’m Amna Habib, an undergraduate student pursuing a Bachelor’s in Business Administration. Shark Tank has always been one of my favorite TV shows because it offers a unique glimpse into the world of entrepreneurship. The way entrepreneurs present innovative solutions to everyday problems aligns with my academic interests and fuels my curiosity about business strategies. Each pitch showcases creativity and strategic decision-making, which I find both insightful and inspiring. Watching the show has deepened my passion for business and motivated me to explore the world of entrepreneurship even further. Beyond business and writing, I love food, shopping, and spending time with my friends and family.
