Well24™ Day Energy Series 4000K A19/A60 Dimmable LED Bulb
Shipping & Returns
We are committed to bring our products to everyone in the world. Our service delivers to most countries in the world and is dedicated to meeting a variety of shipping needs. The fee will be automatically calculated based on your order at checkout. Learn more
You can return your product up to 30 days after receiving your order. Learn more
Warranty
Yuji Lighting is committed to providing high quality standards of LED products for the market. We hold strict standards in quality control all the time, from primary design to the final manufacturing. All of our LED products are delivered after rigorous in-house testing and inspection.
Thanks to that, we are able to provide at least two year warranty from the day the customer receive the product (unless otherwise stated). Learn more
How does the bulb work?
Well24™ Day: For awakening
The Well24™ Day technology focuses in enhancing the lighting power in the most sensitivity range of ipRGCs to help with restraining the melatonin secretion in a most effective way and this feature brings alert, focus, excite in a natural way, performing as a cup of “lighting coffee” but in a natural and healthy way from the spontaneous human body instead of external intake.
Well24™ Day: For awakening
The color temperatures are designed as neutral and daylight white as 4000K and 5000K, giving the morning and moon
lighting tones. With 90+ CRI, the environment built by Well24™ Day presents very naturally and renders the colors vividly.
Why this bulb brings alert, focus, excite in a natural way?
The Well24™ Day technology focuses in enhancing the lighting power in the most sensitivity range of ipRGCs to help with restraining the melatonin secretion in a most effective way and this feature brings alert, focus, excite in a natural way, performing as a cup of “lighting coffee” but in a natural and healthy way from the spontaneous human body instead of external intake.
High Melanopic Daylight Efficacy (M-DER) for Well24™ Day
Melanopic Daylight Efficacy Ratio (M-DER) is a metric for evaluating the circadian effect compared to the natural daylight (6500K), when M-DER = 1, the circadian effect of the light is equivalent to the daylight.
The Well24™ Day tech achieves the M-DER to 0.967 (at 5000K), which is 48% higher than the general LED which means relatively it brings 48% more circadian effect for you the focus and boost your energy, or it is possible to reduce 48% visual illuminance but achieve the same circadian effect when comparing the general LED lighting.
Product Features
1. Flicker Index 0.000
We tested the well24™ night LED bulb with 240 FPS shooting, the light output is stable, and no flash observed.
2. Dimmable
Yuji unique dimming technology enables this product to emit only 5% of the rated brightness, which can meet the usage scenarios under any design. This bulb is compatible with TRIAC dimmer.
3. RG0 Exempt class biological safety
Well24™ reduces the blue light essentially from the spectrum grade to guarantee the lighting design is compliant to absolutely biological safety by helping to achieve the Exempt Class (Risk Group Zero) following IEC 62471.
4. CRI 90+
Designed with Yuji multi-phosphor high CRI technology, the lighting systems perform excellent color rendering capability and give vivid visual effects for skin tones.
Well24™4000K LED bulb brings 48% more circadian effect for you
Product overview
Yuji Lighting® Well24™ Day LED lamps provide optimal lighting solutions for all spaces which promoting daytime focus and productivity. Designed with Yuji Wellbeing technology, lamps emit a biological wellbeing spectrum, reducing the damage of the biological clock, allowing people to become more focused, whilst retaining a beautiful, soft white light quality. They are excellent for task, office, studio, manufactory etc. lighting.
Well24™ TechYuji circadian lighting sends signals to the master clock in the brain, telling our bodies when it is daytime and when it is night.
Yuji guarantees that the color difference between different products is so subtle that the human eye cannot directly perceive the difference.
Yuji uses Human-Centric technology to avoid blue light damage as much as possible while ensuring the quality of color rendering.
NORTH AMERICA SPECS
| Part Number | Power | Luminous Flux | CCT | CRI | M/P | MDER | Beam Angle | Dimmable | Warranty |
| L3210105.40 | 11W | 1100lm | 4000K | 90+ | 0.92 | 0.79 | 200° | √ | 3 years |
| L3210105.50 | 11W | 1100lm | 5000K | 90+ | 1.03 | 0.93 | 200° | √ | 3 years |
EUROPE SPECS
| Part Number | Power | Luminous Flux | CCT | CRI | M/P | MDER | Beam Angle | Dimmable | Warranty |
| L3210106.40 | 11W | 1100lm | 4000K | 90+ | 0.92 | 0.79 | 200° | √ | 3 years |
| L3210106.50 | 11W | 1100lm | 5000K | 90+ | 1.03 | 0.93 | 200° | √ | 3 years |
| Part Number | Power | Luminous Flux | CCT | CRI | M/P | MDER | Beam Angle | Dimmable | Warranty |
| L3210105.40 | 11W | 1100lm | 4000K | 90+ | 0.92 | 0.79 | 200° | √ | 3 years |
| L3210105.50 | 11W | 1100lm | 5000K | 90+ | 1.03 | 0.93 | 200° | √ | 3 years |
| Part Number | Power | Luminous Flux | CCT | CRI | M/P | MDER | Beam Angle | Dimmable | Warranty |
| L3210106.40 | 11W | 1100lm | 4000K | 90+ | 0.92 | 0.79 | 200° | √ | 3 years |
| L3210106.50 | 11W | 1100lm | 5000K | 90+ | 1.03 | 0.93 | 200° | √ | 3 years |
FAQ
Frequently asked questions about this LED bulb
Do you ship overseas?
Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.
How long will it take to get my orders?
It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.
Do the Well24™ bulbs emit blue light?
Yes, the Well24™ LED bulbs do emit some blue light.
The people seem to think that bulbs containing blue light are bad, but this is not the case.
Excessive exposure, especially after sundown, can be detrimental to our eye health and sleep quality, but blue light is omnipresent in our daily lives. It is naturally emitted by the sun and plays an essential role in the regulation of our sleep-wake cycle, mood, and cognitive performance.
Well24™ 4000K LED bulb blue light peak is distributed around 480nm, helping synchronize your circadian rhythm and enhance mood and alertness.
Well24™ 2200K LED bulb offers the M/P ratio down to 0.294, which is 47% lower than the general LED (at 3000K) which means relatively it reduces 47% circadian effect for your relax when comparing the general LED lighting.
For more concerns, please see our research for blue light hazard.
Are the Well24™bulbs dimmable?
Yes, the bulbs are dimmable. They allows to work with an dimmer, and can be smoothly adjusted down to 5% brightness.
Any question?
You can contact us through our the online chat tool or contact page! We will be happy to assist you.
Yuji Lighting Product Guarantee Regulation
Yuji Lighting provides a 30-day return & exchange policy for all our orders. You could return any product you purchase to us for a full refund or an exchange within 30 days of receiving your product.
- See our full returns & refunds policy here
- See our warranty policy here