Don’t make this mistake with your home lighting. Some bulbs could be aging you faster and draining your energy without you noticing. Old incandescent bulbs flicker invisibly. That tiny flicker stresses your nervous system and can cause fatigue, headaches, and poor sleep. Most LED bulbs are almost all blue light. They suppress melatonin, disrupt your circadian rhythm, and increase oxidative stress. The best option is the sun. If you can’t be outside, use a zero flicker, circadian-friendly bulb. I

How to Install Load Resistors for LED Turn Signal Lights