This study investigated a learning environment that can enhance memory using LED lighting. Thus, it employed experimental verification to evaluate the effect of LED lighting's illuminance and correlated color temperature on long-term memory. The lighting environment was created under six conditions: two illuminance levels of 400 lx and 1,000 lx, and three correlated color temperatures of 3,000 K, 5,000 K, and 7,000 K. The participants of this study consisted of 30 cognitively healthy adults, with an average age of 21.7 years (SD = 1.73). The learning (memory) task used meaningless letters of only seven consonants, and the word fragment completion task measured memory retention after 20 minutes. The results of the study revealed that a relatively dim light of 400 lx, 5,000 K condition yielded the best long-term memory (Mean = 37.67, SD = 14.55), while the 1,000 lx, 5,000 K condition elicited the worst long-term memory (Mean = 25.67, SD = 12.78).

Abstract
1. INTRODUCTION
2. METHOD
    2.1. Participants
    2.2. Experimental Environment
    2.3. Procedure
    2.4. Measurement
    2.5. Statistical Analysis Method
3. RESULTS and DISCUSSION
4. CONCLUSION
REFERENCES

• Chung-Won Lee(Researcher, Industry-University Cooperation Foundation, Kongju National University)
• Joung-Myo Shim(Professor, Department of Skin Health Care, Suseong University)
• Jin-Ho Kim(Professor, Department of Industrial Engineering, Kongju National University)
• Boseong Kim(Professor & Director, Division of Philosophy and Center for Educational Performance Management, Dong-eui University) Corresponding author