Hi im just wondering if the height is good enough ...

The specs don't add up on the spreadsheet.. It says 108 pcs, 15w each.. That's 1620w. - I run a 300w full spectrum, around the same height as yours, and my plants are only about half as tall, yours is definitely stretching more to, to be closer to the light.. tbh, it's probably a Chinese knockoff, and not Epistar LEDs, and not as powerful as they say. Not that uncommon when buying from ebay. That said, it's an LED.. Shouldn't get too hot even if it's pretty close, so you can probably lower it more than it is. Tho, use your hand to check that out once in a while.