Well if it lasts that long it beats buying a new hps bulb every 1 or 2 grows, I don't know why the fact it draws only 75w is an issue, isn't that the idea? As efficient as possible. To some consumption may not bother them, but others more so
This exactly, in Denmark we pay ~ 0.30€/Kwh that means a 600w hps running 20/4 costs 1200€/year to run. 2x HS1 costs 300€/year. So for me its an easy choice, gotta think long term and the cost of running the lights easily makes up for the ekstra cash up front.
And it only takes 1x 600w running 20/4 for a year to consume the same ammount of power as my household of 2x adults and 2x kids does in a year. So the extra stealth is definitly worth also taking into account
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