Lumatek 400W Grow Lamp Bulb
The first of it’s kind to be built specifically for Super Lumens and Dimmable ballasts. Where other bulbs would lose efficiency & life-span if switched between settings, the Lumatek HID bulb can last an incredible 24,000 hours! That’s Years of AMAZING grow-room results! No other grow lamp will do your Super Lumen ballast justice or can handle being run at differing output levels.