Boulder Flatirons

Boulder Lamp Inc. CDL 315 Watt Fixture


“Boulder Lamp’s ceramic discharge lamp is one of the best horti-lights available today.” -High Times

SKU: 0008 Category:

Boulder Lamp's Ceramic Discharge Lighting utilize Philips Agro ceramic discharge lighting technology also known as CDM and LEC. Philips CDL Agro bulbs generating broad and intense spectrum across the board. Boulderlamp, Inc (BLI) integrates the Philips 315W agro lamp with low-frequency electronic ballasts, durable light fixture, and optics into each product providing the most efficient low heat-generating reliable grow lights. Unique open-rated lamp construction reduces radiant heat from the arc tube and is suitable for open fixture use. Fixture features reflective aluminum insert and reflective corners for superb output, uniformity, and diffusion. Highly efficient agriculturally engineered Philips MasterColor CDM Elite Agro 315 Watt Bulb (Bulb included).

Greatly improved full color light spectrum out of next generation ceramic lamps. Higher amounts of beneficial UV and far red spectrum increase the lamp's growth power to the plants. Very high 1.95 PPF (photosynthetic photon flux) per second light source. 3100° K Green Power or 4200° K color temperature, high 92 CRI, 33,000 initial lumens (105Lm/W). Long life 20,000 hr lamp. High 90% lumen maintenance @ 8,000 hr. High 85% PPF maintenance @ 20,000 hr. The spectrum of CDL resembles sunlight providing 65% of its light energy around blue and red spectrum, ideal for plant’s natural absorption curve. From two feet above plant canopy, the PAR value of 315W CDL Agro exceeds 686 μmol/m2/second.

If you're a small grower, a 3100K bulb (a broad natural-light bulb) is enough for all plant stages. But if you really care about quality, you can get another 4200K bulb and use this for the veg phase, while the 3100K for the flowering period.

All models have a 6 ft power cord. Fixtures included a daisy chain power receptacle for connection of up to 8 of the 120 volt units and 10 of the 208/240 V units.

Additional information

Weight 152 oz
Dimensions 22 × 17 × 10 in
Select Lamp/Voltage

120 Volt w/ 3100 K Lamp, 120 Volt w/ 4200 K Lamp, 208 / 240 Volt w/ 3100 K Lamp, 208 / 240 Volt w/ 4200 K Lamp

2 reviews for Boulder Lamp Inc. CDL 315 Watt Fixture

  1. Licensed Commercial Grower

    “4 feet x 32 feet grow beds. Each grow bed used to be operated by 8 x 1000W HPS grow lights. These were replaced by 24 x 315W CDL grow lights. Result: 19 pounds vs. 11 pounds per bed – A 72.7% increased in yield. THC contents also increased by 5%. Payback: One grow cycle (three months).” -Licensed Commercial Grower, Boulder, Colorado.

  2. Licensed Commercial Grower

    4 feet x 8 feet grow beds. Each grow bed used to be operated by 2 x 1000W HPS grow lights. These were replaced by 5 x 315W CDL grow lights.
    Result: 4.2 pounds vs. 2.6 pounds per bed – A 61.5% increased in yield while saving approximately 27% energy. Payback: One grow cycle (three months).
    -Licensed Commercial Grower, Boulder, Colorado.

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