The significance of high-power LED lights lies in protecting your eyes.

Modern medicine has confirmed that myopia is caused by the excessive growth of the eye axis rather than abnormal development of the lens, and the growth of the eye axis is regulated by light. Ensuring sufficient outdoor activities daily is essential for healthy eye development.

However, with heavy workloads or academic pressures, it’s challenging to maintain prolonged outdoor activities. So, what can be done? Increase indoor brightness.

The illuminance of outdoor midday sunlight is approximately 100,000 to 200,000 lux (lx), and even on cloudy days, it can reach tens of thousands of lux. For a healthy indoor lighting environment, the illuminance should be at least 1,000 lux.

To achieve 1,000 lux even in a small American apartment, a ceiling light with a luminous flux of 20,000 lumens is required. Currently, the luminous efficacy of most ceiling lights on the market is around 60 lumens per watt (lm/W). To meet the basic indoor lighting standard, the ceiling light must have a power of at least 200 watts.

Therefore, if you are using ordinary LED lights available on the market, a ceiling light of 200 watts or more is just the basic requirement for achieving healthy indoor lighting; 300 watts or even 400 watts is not excessive. The ceiling light should also have a simple, flat design without complex shapes, as otherwise, the power requirement would double. In most living rooms with a “no main light” design, relying on a few downlights, spotlights, and strip lights, the illuminance can be as low as 100 lux, which is almost blinding.

Finally, a reminder: when buying lights, you’re not just buying power but luminous flux. Any lighting fixture that only specifies power without luminous flux should be considered a substandard brand. The power discussed above is based on the actual specifications of reputable brands.

Here, our JCLGL LED panel lights have a luminous efficacy of over 130 lm/W. Using our 2ft x 4ft, 72W panel light, it can provide 9,360 lumens. A large living room of 50 square meters can achieve nearly 1,000 lux of illuminance with just one 72W panel light.

PS: The national standard for classroom illuminance is 500 lux, equivalent to a ceiling light of about 120 watts in a small living room. This illuminance requirement may consider energy consumption and cost factors, but for personal use at home, it’s better to opt for higher quality.