Our 2016 29 MV a few months ago had a dinning area LED ceiling go out . Instead of taking it to the dealer to be replace ,I ordered one on the internet for about $15.00 shipped in . The replacement light was much brighter than the other side even though it was the same part number . On our next trip we notice one of the main ceiling lights was dim. I called the dealer and asked for two replacement lights since we are still under warranty. They agreed to order them for me to replace them . On Our next trip 2 more lights went out . I called our dealer and asked for two more replacement Lights and picked up the first two replacement lights . When I installed them I notice they were much brighter than the rest of the lights , on closer inspection I found that each light has 15 LED's in it . They fail in banks of 3 . Some lights had 3 LED's lit ,some had 6 ,some had 9 some had 12 . All but 3 Ceiling had failed . The build date on the lights was 15-01 . I e- mailed ITC customer service and explained the problem . They promptly shipped me replacement lights without question . The replacement lights have a metal heat sink under the circuit board . I have had good service when contacting the manufacturer directly about their product.