GRASP Engineering reviewed all projects since conception in 2011. Led products installed since then have been working with only the following failures. One tube driver, 1/2 of one 4' tube, 3 Par30's immediate failure due to bad resistor, 6 LED 2x2 at year 4 1/2. driver failure, replaced at no cost to client. 1 Toshiba Par20 installed in 2005. 1 experimental 150W high bay at year 5, replaced free.