Sale!

GROWERBASICS 315W CMH BULB

Original price was: $122.99.Current price is: $99.99.

Full‑Cycle Wide Spectrum (4200K / 90 CRI) Gives plants a strong, natural white spectrum they can use from early vegetative growth straight through to flowering. High color rendering helps plants show true color and stay healthy.

High PAR Output & Deep Canopy Reach (620 μmol/s) Produces intense, usable light with 35,400 initial lumens to reach lower branches and support fuller growth.

Energy‑Efficient 315W Draw Uses far less power than traditional HID systems, helping reduce electricity costs without sacrificing performance.

Cooler Operation for Close Placement Runs much cooler than older grow lights, allowing you to place the lamp closer to the canopy for stronger light intensity without heat stress.

Compact PGZ18 Form Factor Standard PGZ18 bi‑pin base. Lamp measures 193mm (7.6″) long and 38mm (1.5″) wide — fits any 315W CMH fixture.

Why growers switch A 315W CMH can replace a 1000W HPS/MH for many indoor gardens, cutting heat and power use by up to 70% while improving spectrum quality and plant health.

What You Can Grow With a 315W 4200K CMH

Because 4200K is a balanced, full‑cycle spectrum, it supports a wide range of crops:

Vegetative Crops

  • Lettuce, kale, spinach
  • Basil, cilantro, parsley, mint
  • Houseplants, tropicals
  • Seedlings, clones, young starts

Flowering Plants

  • Cannabis (veg + flower)
  • Gerbera
  • Chrysanthemums
  • Dahlias
  • Roses
  • Orchids (high‑light varieties)

Fruiting Plants

  • Tomatoes
  • Peppers
  • Strawberries
  • Cucumbers
  • Small melons (in controlled environments)

Why these plants thrive under 4200K

  • Balanced white spectrum → steady, healthy growth
  • Strong PAR output → good photosynthesis
  • Cooler operation → less stress, tighter internodes
  • Full‑cycle spectrum → no need to swap lamps
Category: Tags: , , , ,

Description

Full-Cycle Wide Spectrum (4200K / 90 CRI) Supports plants seamlessly from the vegetative stage straight through to flowering with high color rendering.

•High PAR Output & Deep Canopy Penetration (620 �mol/s) Delivers 35,400 initial lumens and intense light penetration to reach lower plant growth.

•Energy-Efficient 315W Power Draw Consumes low wattage, reducing overall electricity consumption and operational expenses.

•Cooler Operation for Close Canopy Placement Emits significantly less heat than traditional grow lights, allowing placement closer to plants without heat stress while lowering cooling costs.

•Compact PGZ18 Form Factor Standard PGZ18 base design measuring 193mm (7.6″) in length and 38mm (1.5″) in diameter.

Switching from a 1000 watt high-pressure sodium or metal halide system to a Hollandbasics 315W ceramic metal halide (CMH) system will increase the growth, health, and yield of your plants and will lower your energy costs by up to 70%. The wide spectrum of our Lightspeed CMH 315W 3100K Double Jacketed Lamp allows either the 3100K or 4200K to be used from the vegetative phase straight through to flowering, or for maximum growth and yield begin with the 4200K bulb for vegetative and then switch to 3100K for the flowering phase.

The lower wattage of our 315W CMH bulb versus the standard 1000W HID bulb translates to less heat being expelled from the bulb and the ability to place the grow fixture closer to the canopy, increasing light intensity and canopy penetration. This double glass jacketed lamp features a bi-pin PGZ18 lamp base and is rated for either open or enclosed fixture use. The ultra-efficient ceramic metal halide system can do the same job as MH and HPS with better results, using less power and emitting less heat. Hollandbasics315W ceramic metal halide bulbs pair well with any bi-pin 315W system

 

Additional information

Weight 2 lbs
Dimensions 16 × 12 × 5 in