WARNING! Do not look directly into the BLINDER sensors with the naked eye at close range. You won’t see anything, but you might cause eye damage after prolonged exposure as the BLINDER sensors emit high-power infra red (IR) light, which is not visible to the human eye. Make sure that the power is disconnected to the CPU before attempting any maintenance with any BLINDER sensor. Using magnifying glasses may increase the chance of damage to your vision. Avoid using any light magnifying device.