First things first, underhood work lights are not the standard bulbs. They are brighter than a usual bulb or flashlight. There is no denying that some bulbs can strain your eyes and can bring on sudden dizziness and fatigue. But, that only happens when you stare at the bulb for too long. Just make sure you don’t stare at the lights. You only need them to deliver adequate light underneath your car and other parts. If you are concerned about your eyes and overall safety, we recommend the underhood work lights with a low level of lumens.