The Armour Series of CMH grow lights provide full spectrum, one bulb can be used for both veg and bloom stages, during a full-cycle growing. It is important to keep grow room at an ideal temperature. The Armour Series of CMH grow lights run much cooler than the traditional lights. Because of the low heat output, they are perfect for small spaces like tents, closets or spare rooms. We, at Hydro Experts, sell Armour Series LEC/CMH Fixture of 315W which includes Philips 315W 930 CDM Elite Lamp.