I am looking to sell (4) 4' T5HO light fixtures, preferably sold as a package but will sell single fixtures. Dimensions: 4 foot long fixtures while 16-3⁄4" Width x 4-5⁄16" Height These are T5HO florescent High Bay light fixtures were originally meant for industrial warehouses however the light given off by these light fixtures is INTENSE which also makes them great for developing happy and healthy seedlings (so long as the lights are mounted an appropriate distance from your seed starts). I should mention that these lights would NOT be good for growing salad greens due to the light spectrum given off by these fixtures being in the 4100k-4900k range. The intensity of light however makes them great for getting seeds to germinate so long as adequate bottom heat is applied. One fixture fits 5 standard size seedling trays perfectly therefore with a four light set up your looking at a capacity for 20 trays of seed starts. I have purchased these lights from a wholesaler and have attached the required male plug housing and cord sets to enable them to be plugged into any standard wall outlet. Keep in mind when buying directly from a wholesaler the cord/mounting hardware/and plug housings are an additional charge and can add up fast. I paid just shy of $800 new for these four lights and accessories. Worth mentioning that the mounting hardware is not that which is listed on the wholesalers sight. I have custom built my mounting hardware to allow for the easy repositioning of the lights as your seedlings grow. I don't mind answering inquiries but I'm quite firm on $150 each if your looking to buy any less than 4 light fixtures. I will not answer questions that have already been answered on this page or answered by the wholesalers website: https://ebhorsman.com/itemDetail?product=hbi454ht5-mp-upl-l4-fixtures-fluorescent-electronic-&p=333872