Based on this video 90w LED UFO Comparison 400w HPS - YouTube I just watched I'm skeptical if HPS in more benificial.
ugh Reviewed by ugh on . Replace 400W HID for LED??? I'm looking at replacing one 400W HID light which I'm currently using to cover two plants in a 4 ft x 4ft space? Ideally want to get maximum yield. Any suggestions please and an idea of price, make, wattage, etc? Seem to be having difficulty getting any good information for purchasing in UK. Any info greatfully appreciated!! Rating: 5