Adjust-A-Wings Hellion 315 CMH - 4200K Single Ended Lamp This new Ceramic Metal Halide lamp is a first. Utilising Bespoke Japanese Arc Tubes and fitted with an E40 Screw Mogul makes this lamp compatible with most industry standard reflectors. Just ensure you are using a CMH ballast with this lamp. Borosilicate glass jackets enhance harmonic stability with a cooler lamp operation, thus extending lamp life at over 10000 hours. The 4200K lamp showed up to a 7.5% increase in output over industry leading lamps. Adjust-A-Wings CMH 315W kit (4200K) High intensity, high reliability and unrivalled spectral output. The Adjust-A-Wings 315W CMH light kit includes a class leading 4200K Ceramic Metal Halide (CMH) grow lamp with bespoke Japanese arc tube and XOS borosilicate jacket. Perfectly matched to the specialist Ultra High Frequency (150KHz) remote e-ballast which ensures effortless, reliable ignition of both the 3100K and 4200K lamps. Ideal for small grow spaces (1 x 1m footprint) and for blending with HPS lamps to provide complete spectral diversity. Key grower benefits include: remote ballast for out of room mounting and heat reduction