I would go with Mars too if thats your price limit.
@Hogmaster yes most of the 300w lights are basically the same unit. What color is the light from them ?
If you can find TopLEDSeller or some thing like that. they have a 300w with more white light and I have found having white light is a big plus for yield, plant shape and penetration in to the canape, I havent done a side by side with same everything but the nugs are more solid and a real pest to grind up.
I have chilies in tents atm that I am growing for seed and the 300w with more white light had more flowers and the chillers are larger with more meat. The mars 300w is more blue red and the chilies look get but they have no meat just a thin wall and a truck load of seeds. These are different color fruit but same type (two scorps and a ghost sept tents) they are going outside in a week or so its spring here.