Dear readers, I recently ordered some chinese bridgelux led spots for my upflow scrubber. I have 2 holders for e27 spots and decided to go with 2x15w (5x3w) grow lights. I got in touch with the seller and explained that I really wanted the 3w version and not the 1w version.. however the seller told me that a 5-7w diver is used to extend the lifetime of the leds.. if this is true or not.. I don't know. Anyway the actual wattage will be around 5 watt, I have been told. I wonder what you think about this led spot.. it peaks at 450 in the blue spectrum and 650 in the red.