I have 2 4.5 inch round 1080 lumen and 1 13 inch 4320 Lumen light bar by Teaveller on my work f 250. Over 3 years they have held up pretty well. 1 of the 4.5" ones has some moisture in it. However it might not be the lights fault as it got roughed up by a rock, but it could also be cheap parts from China as it is sold at tractor supply.