Small review on the viparspectra v300 that I used, maybe it can be usefull If someone are looking for a budget light:
Cons:
-it's noisy! if you are growing in your bedroom or living room etc.. keep it in mind.
-the spectrum it's poor, lot of blue n little red, no green, yellow, orange, uv etc..
-it covers a little less than what the vipar claim.
Pro:
-among the made in china's led is one of the best built and has a long and reliable warranty period.
-it's really good for vegetative.
-it's very cheap
to conclude, it will grow your plant quite well but do not expect super results.