Interlux 200W CFL Lamp 6400K

The Interlux 200W CFL Lamp 6400K is a high-output compact fluorescent lamp designed specifically for plant growth. Its 6400K daylight spectrum targets the vegetative stage, delivering the blue-shifted light that promotes compact, leafy growth. No ballast or external driver is required — the lamp runs directly in a standard CFL-compatible mogul socket. It is rated for use in humid environments, making it practical for propagation rooms and grow spaces where moisture is present.

Interlux 200W CFL Lamp 6400K Specifications

Technical specifications for the Interlux 200W CFL Lamp 6400K (SKU: 790200-CF). Attributes are drawn from the supplier listing; dimensions and weight are not published by the supplier and are noted as unverified.

Specification	Value
Brand	Interlux
SKU	790200-CF
Lamp Type	Compact Fluorescent (CFL)
Wattage	200W
Color Temperature	6400K (daylight / blue spectrum)
Ballast Required	No — self-ballasted
Humidity Rating	Suitable for humid environments
Warranty	1 year
Shipping Requirement	Freight / pallet only (no ground or air)
Application	Vegetative stage plant growth

Why Choose the Interlux 200W CFL Lamp 6400K

CFL technology at 200W occupies a useful middle ground in horticultural lighting: more output than small-scale propagation lights, less infrastructure overhead than a full HID or LED fixture. Here is what the Interlux 200W CFL offers based on the supplier’s published specifications.

• No ballast needed. The lamp is self-ballasted, meaning it screws into any compatible mogul-base CFL socket and runs without a separate ballast unit. This reduces setup cost and simplifies wiring, particularly in small rooms or supplemental-lighting configurations.
• 6400K spectrum for vegetative growth. The daylight-range color temperature delivers the blue-dominant light spectrum that plants use during the vegetative phase. Blue light supports compact node spacing and broad leaf development before the plant transitions to flower.
• Rated for humid environments. Grow spaces — especially cloning rooms and propagation tents — accumulate moisture. The Interlux 200W CFL is designed to operate in these conditions, reducing the risk of early lamp failure due to humidity exposure.
• Efficient and cost-effective entry point. At 200W, this lamp provides meaningful light output without the upfront cost of a high-end LED system. It suits growers who want reliable vegetative lighting without a large capital outlay.
• One-year warranty. Interlux backs this lamp with a one-year warranty, providing a baseline guarantee against manufacturing defects.

Best Uses for the Interlux 200W CFL Lamp 6400K

Based on the lamp’s wattage, spectrum, and humidity rating, it is best suited to the following applications in an indoor growing environment.

• Vegetative stage lighting. The primary design intent of this lamp is to support plant growth during the vegetative phase. The 6400K spectrum aligns with the light requirements of plants actively developing foliage and root structure.
• Cloning and propagation. At 200W, the lamp provides adequate light intensity for rooting cuttings without the heat stress associated with higher-wattage HID sources. The humidity tolerance makes it practical for the wet, enclosed conditions of a propagation station. A heated propagation kit with integrated T5 lighting is an alternative approach for growers who want a self-contained propagation setup.
• Small grow rooms and grow tents. The self-ballasted design and pallet-shipped format (bulk) make this lamp a candidate for smaller commercial or hobbyist operations running multiple CFL sockets across a dedicated veg room.
• Supplemental lighting alongside T5 fixtures. Growers who already run T5 fluorescent fixtures can use a 200W CFL to boost intensity in specific zones without upgrading to a full HID or LED system.
• Humidity-prone environments. Greenhouses, basement grows, and rooms without active dehumidification can run this lamp without the concern that moisture will cause early failure.

Compatibility

The Interlux 200W CFL Lamp 6400K is a self-ballasted compact fluorescent lamp. Compatibility considerations are as follows.

• Socket type. The lamp requires a mogul-base (E39) CFL-compatible socket rated for at least 200W. Verify that the socket and hood are rated for self-ballasted CFL lamps at this wattage before installing.
• No external ballast. Do not use this lamp with a separate HID or fluorescent ballast. It is self-ballasted and connects directly to line voltage through the socket.
• Voltage. The supplier listing does not publish a specific voltage range. Standard North American CFL sockets operate at 120V. Confirm the lamp’s voltage rating against your facility’s supply before purchase if you are operating at 208V or 240V.
• Humid environments. The lamp is rated for humid growing conditions. However, it should not be submerged or exposed to direct water spray.
• Shipping constraints. This lamp ships freight only, on pallets. It cannot be shipped via ground parcel or air. Factor lead time into your planning if ordering for a time-sensitive grow cycle.

For growers seeking higher-output LED solutions for larger vegetative areas, the Gavita Pro 1700e LED operates at 120–277V and covers significantly larger canopy footprints, though it represents a higher capital investment.

Usage Guidelines

The supplier listing does not publish a specific coverage area or PPFD map for this lamp. The following guidance is derived from the lamp’s category (200W self-ballasted CFL, 6400K) and general horticultural lighting practice.

• Mounting height. For vegetative plants, CFL lamps at this wattage are typically positioned 12–24 inches above the canopy. Closer placement increases intensity but also heat exposure at the leaf surface. Monitor leaf temperature and adjust as needed.
• Photoperiod. Vegetative-stage plants generally require 18 hours of light and 6 hours of darkness per 24-hour cycle. Use a compatible timer to maintain the schedule consistently.
• Replacement cycle. Fluorescent lamps lose lumen output over time even when they continue to operate. Consider replacing the lamp when visible output decreases noticeably or at the end of the one-year warranty period if output is critical.
• Heat management. CFL lamps produce less radiant heat than HID sources at equivalent wattages, but a 200W lamp still generates meaningful heat in an enclosed space. Ensure adequate air exchange to prevent canopy temperatures from rising above the plant’s comfort range.

Sources & Further Reading