LUMATEK DE BULB 1000W - 400V +10% PARLumatek new electronic bulbs DE 1000W 400V high performance (+ 10% PAR) The new electronic bulbs 1000W 400V DE of Lumatek are compatible with the electronic ballast Lumatek Pro 1000W 400V suitable for crops. Together, they guarantee greater results in plant growth. Main feature of the product is to reduce light leakage and concentrate more on crops. Compared to normal 240V lamps, those from 400V have a + 10% PAR (Photosynthetic Active Range) closer to