Should be not much more than 200 hours of use. Pretty neat light that can go extremely bright. Helped grow veggies over the winter outside in a small greenhouse. Simply selling because of downsizing at the apartment. Should work great for anyone who wants to grow food or flowers indoors. Would be thrilled to demonstrate how bright it can be set to! Here is the link to the original Amazon page: https://www.amazon.ca/dp/B08746FHH4?ref=nb_sb_ss_w_as-reorder_k0_1_5&=&crid=2IFLESI8ILEGD&sprefix=vipar&th=1