Foldable multi-bar frame
The open bar layout distributes the light source across a wide active area.


The foldable multi-bar layout spreads the light source across a wider frame than a compact board. Use it in a controlled tent or room with planned hanging clearance, airflow and electrical capacity.
Confirm crop type, growth stage, hanging clearance, airflow and electrical capacity before installation.
application and product planning image
OC640 is the lower-output OC-series option for growers who need bar-style coverage without moving directly to 800W or 1000W.
Actual plant performance depends on crop, stage, height, daily light duration, airflow and the wider growing environment.
The open bar layout distributes the light source across a wide active area.

Use lower output when plant demand or environmental capacity does not require full power.
The open fixture design works with room airflow and avoids a fixture-mounted fan.
Use the product test map as one starting point, then adjust for your canopy and room.

performance and placement referenceTreat the pictured readings as one test setup, not a guaranteed result for every crop, room or hanging height.
Reflective walls, plant height, dimmer position, airflow, fixture spacing and measuring equipment can change readings.
Use active canopy size, fixture format and environmental capacity to narrow the choice.
Use the real product media to verify what arrives and whether another fixture format fits the plan better.
package and included accessoriesUse the current package image to confirm the fixture and included accessories before ordering.
product imageReview OC800 when the planned canopy and room can make use of a higher-output multi-bar fixture.
Only values supported by the current U.S. product record and media are included here.
| Specification | Details |
|---|---|
| Light and role | |
| Model | OC640 |
| Rated input | 640W |
| Product role | Primary grow light |
| Planning fit | 4 x 4 ft flower or 5 x 5 ft veg planning |
| Fixture and control | |
| Fixture format | Foldable multi-bar |
| Control | Dimmable output |
| Thermal design | Passive bar cooling |
| Input voltage | AC 100-277V |
| Physical and operating details | |
| Product dimensions | 43.7 L x 43.7 W x 3.66 H in (1110 x 1110 x 93 mm) |
| Operating temperature | Maximum ambient 95°F (35°C) |
Practical answers for planning, installing and comparing OC640.
Use the current product media as a reference, begin conservatively and adjust after observing canopy response. No single height is correct for every crop or room.
That depends on the product role, plant type, canopy size, growth stage and environment. Review the description and specifications before treating a supplemental light as a primary fixture.
Confirm hanging clearance, electrical capacity, airflow, fixture spacing and protection from direct spray or standing water.
Use the package image and current product record to confirm the fixture, power components, mounting accessories and documentation included with this listing.
Choose OC640 when a 640W multi-bar plan fits your canopy and environment. Compare OC800 for a higher-output platform, or MA200 for a smaller board-style setup.
Review the current Shipping Policy and Refund Policy. Use the Contact page for compatibility or warranty questions before ordering.
Read current customer feedback and product ratings.