For the awesome new Lumatek 1000w 400v Professional Ballast you need a special 1000w Lumatek 400v Ultimate Professional double-ended Lamp.
The new 400v Dimmable High Performance Lamp from Lumatek is a pro quality, 1000w double ended horticultural lamp. Designed specifically for super high yields; these 400v Lumatek Pro Lamps provide an exceptionally high PAR output and will retain efficiency even when regularly used at differing ballast settings.
This directly relates to how fast-growing and healthy your plants will be - ensuring that the size and quality of your yields will never be the same again.
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TN24 0BP Ashford, kent