If you have a Ceramic metal halide (CMH) grow light and you need a replacement 315 watt CMH bulb, you have come to the right place. Here at Hydrobuilder, we have a wide selection of 315w CMH and LEC bulbs for you to choose from.

Whether you're looking for a SE or DE bulb, we have the best prices and offer the best service. We carry all the popular CMH bulb brands, such as Philips, Growers Choice, Phantom, Ushio, Eye Hortilux, and more.

Which 315 watt CMH bulb is right for me?

In general, CMH is a full spectrum lighting solution, so you don't need to overthink this. If you are using it for specifically veg, you'll want a high color temp (kelvin rating), somewhere around 4,000-4,200K. If you are just using it for flower, consider a lower kelvin rating, somewhere between 3,000-3200K.

Looking for a different wattage? You can shop all CMH bulbs, as we have them ranging from 315-1000w.

If you have questions or want a quote on a bulk order, reach out to our experts and we can help you out!