OIO vs Bon Charge: Which Circadian Bulb Should You Buy?

Bon Charge has built a loyal following in the wellness and biohacking community. Their circadian light bulb promises three spectral modes designed for different times of day. OIO by Korrus makes the same fundamental promise but backs it with 500+ patents, Nobel laureate technology, and full smart home automation.

Both target the same customer — someone who cares about how light affects sleep and circadian health. The question is which one delivers better and makes it easier to stick with.

At a Glance

The Automation Problem: Why Manual Switching Fails

This is the single biggest difference between OIO and Bon Charge, and it matters more than any spec on paper.

Bon Charge uses a manual toggle switch to change between its three modes. To shift from day mode to evening mode, you physically flip or cycle the switch. There's no app, no WiFi, no smart home integration, no scheduling. You are the automation.

OIO connects to WiFi and integrates with Matter, Apple Home, Google Home, and Amazon Alexa. You set your schedule once, and the bulbs shift through four spectral modes automatically — morning through night, every day, in every room. You don't touch them. You don't think about them. They just work.

This isn't a minor convenience feature. It's the difference between a lighting system that consistently affects your circadian rhythm and a bulb you manually flipped for two weeks before going back to normal lights.

Spectral Modes: 4 vs 3

Bon Charge offers three modes. OIO offers four. The extra mode matters.

• MaxBlue (OIO morning) — sky-blue enriched, >20% blue content. Designed to suppress residual melatonin and drive alertness. Bon Charge has a daytime mode, but OIO's morning mode is specifically tuned for the wake-up phase.
• Daylight (OIO midday) — balanced full-spectrum for work. Both products cover this range.
• ZeroBlue with Violet (OIO evening) — blue wavelengths removed, violet retained. Both products aim for low-blue evening light.
• Deep Warm 1400K (OIO night) — this is the mode Bon Charge doesn't have an equivalent for. OIO drops to a 1400K deep amber — significantly warmer than a candle — for the last stretch before sleep. This extreme low range minimizes any residual circadian stimulation.

Bon Charge makes good spectral claims for its modes, and the wellness community speaks well of them. But without published clinical data measuring outcomes like melatonin production, those claims are harder to verify.

The Science Behind Each

OIO

Korrus holds over 500 patents in LED spectral engineering. The technology traces to Shuji Nakamura, the Nobel Prize winner who invented the blue LED. Research conducted with Satchin Panda at the Salk Institute — one of the world's leading circadian biology labs — showed that OIO's evening mode produces 68% more melatonin compared to standard LED lighting.

This isn't a wellness brand buying off-the-shelf LEDs and adding a filter. Korrus engineers the spectral output at the phosphor and chip level.

Bon Charge

Bon Charge is primarily a wellness brand known for blue-light-blocking glasses. Their circadian bulb extends that product line with spectral filtering for lighting. The spectral claims are plausible and align with circadian science principles, but no independent clinical data has been published measuring melatonin outcomes or circadian phase effects specifically from their bulbs.

This doesn't mean the bulb doesn't work — it may well provide meaningful blue-light reduction in its evening modes. But there's a difference between "plausible based on the approach" and "measured at a world-class lab."

Where Bon Charge Has an Edge

• Simplicity. No WiFi setup, no app, no accounts, no firmware updates. You screw it in and flip the switch. For someone who distrusts smart home technology or just wants minimal tech, Bon Charge's simplicity is a genuine appeal.
• Wellness community trust. Bon Charge has a strong brand in the biohacking and functional health space. Their blue-light glasses are well-regarded, and customers who already use their products have an easy path to trying the bulb.
• Availability. Bon Charge sells through their own site and Amazon. OIO is only available at korrus.com.
• No network dependency. If your WiFi goes down, Bon Charge keeps working. OIO's scheduled automations depend on network connectivity.

Where OIO Wins

• Automated scheduling. Set it once, never think about it again. This alone makes the circadian intervention dramatically more likely to actually work over time.
• Clinical data. 68% more melatonin, measured at the Salk Institute. No equivalent data exists for Bon Charge.
• 4 modes vs 3. The dedicated MaxBlue morning mode and 1400K deep warm mode provide more granular circadian support across the full day.
• Full smart home integration. Matter, Alexa, Google, Apple Home. Integrate circadian lighting into your existing routines and automations.
• 500+ patents. This is chip-level spectral engineering, not a filter on a standard LED.
• Published specs. 800 lumens, 9W, 25,000 hours. Bon Charge's specs are harder to verify.

Pricing

At $34.99 per Bon Charge bulb vs. $30–35 per OIO bulb, the prices are nearly identical. But OIO includes WiFi, smart home integration, and automated scheduling. You're getting significantly more technology and proven clinical outcomes for the same money.

For a 10-bulb home setup: OIO's 10-pack is $299.99 ($30/bulb). Ten Bon Charge bulbs would run $349.90. OIO is actually cheaper at scale and includes automation that Bon Charge simply doesn't offer.

The Pros and Cons

OIO by Korrus

Bon Charge

The Verdict

Shop OIO Bulbs at Korrus.com →