The common problem with double ended HPS lamps is that growers have to allow 5 - 7 feet between the lamp and the plant canopy to prevent burning and heat stress. The Hellion DE HPS has been designed so that growers can place it only 45cm above the canopy meaning more light penetration to the lover plant levels but without any negative effects. The unique design of the reflector means that you can vary the light intensity given to your plants and thereby mimic the changing seasons of nature. The reflector has 5 width and 5 lamp height settings so it is very versatile. Has been specifically designed and tuned to work perfectly with the Hellion VHF electronic ballast-whether running at the 750W or 600W setting. Generic DE-HPS lamps can suffer considerable spectral degradation and efficiency losses when running at lower or boosted wattages. Overcomes these limitations through superior engineering and precision tuning to deliver a spectrum rich in orange and red to drive budding, flowering and fruit production. The 600 - 750W Hellion DE HPS Illumination Kit Contains. Adjust A Wings Medium Defender Double Parabolic Reflector. Hellion Ultra High Frequency Electronic Ballast (450 / 600 / 750W). Hellion 600 - 750w DE-HPS Lamp. Two Lamp Cords to support remote or on-board e-ballast placement. However, if something does happen during transit we will not accept responsibility. This item is in the category "Garden & Patio\Hydroponics\Grow Lighting & Accessories\Grow Light Kits". The seller is "worksop-hydroponics" and is located in this country: GB. This item can be shipped to United Kingdom.