update... Im 2 weeks into flowering, have the helios very close to 4 small plants and a 400w sodium over another 4. so far the results are identical. I have seen no bleaching or size difference. Measured the actual power consumption of the helios was about 165w. there are photos but im building susp...
i know you can buy activated carbon pellets to refill your filter... Is it possible to clean the used carbon to use again. I was thinking a good soak in hot caustic soda may do the job which would be hany as i have access to a heated tank full of it. Any ideas?
Just bought my first LED.. the Helios 4 from a very helpful company called Quantum LED http://www.quantumledbloom.co.uk/ I have 8 young ladies that are usuallly under 2 x 400w sodium lamps. I am expecting to use just the LED during the veg stage and then have 1x 400w sodium at one end and the helios...