HLG Flowering Initiator Far Red Bulb
Best lighting tool for growers looking to accelerate their bloom cycles.
Accelerate your plant's flowering transition with the HLG Flowering Initiator Far Red Bulb. This specialized 15-watt PAR 38 bulb emits a 730nm far-red spectrum, rapidly shifting the plant's phytochrome state to encourage faster flowering. Designed for brief use at the start of the dark period, it allows for flexible light cycles, such as 13 hours on and 11 hours off. Its low power consumption and compatibility with standard E26 sockets make it an efficient addition to your grow setup, helping you achieve quicker bloom cycles.
$38.99
Owner Satisfaction
4.5
/ 5
Category Rank
290
/ 1077
#290 in LED Light Bulbs
Price vs Category Average
-48%
Below average
Wattage
15
/ Watts
Who it's for
- Commercial growers aiming to accelerate harvest cycles
- Efficiency-focused indoor gardeners minimizing electricity costs
- Hobbyists looking to upgrade existing grow room setups
Who should skip it
- Casual gardeners wanting a low-maintenance, set-and-forget lighting system
- Beginners seeking an all-in-one lighting solution
- Budget-conscious growers prioritizing low upfront equipment costs
Performance breakdown
Flowering Acceleration
Targeted 730nm output effectively triggers the phytochrome shift for faster blooms.
Energy Efficiency
Minimal 15-watt draw keeps operational costs low during daily dark cycles.
Installation Versatility
Standard E26 base ensures seamless integration into existing grow room fixtures.
Coverage Range
Impressive 5x5 foot footprint handles most home-scale flowering setups with ease.
Spectrum Precision
Focused far-red wavelength provides the exact light quality plants require.
Operational Simplicity
Straightforward usage pattern makes complex light cycle management feel effortless.
Key Specs
Wattage
15 Watts
Peak Wavelength
730nm
Maximum Recommended Coverage
5′ x 5′
Bulb Base
E26 (26mm Medium)
Features
- Accelerates flowering transition
- Rapidly shifts plant phytochrome
- Enables 13/11 light cycles
- Brief dark period activation
- Far Red Spectrum (730nm)
- Low 15W power consumption
- Compatible with PAR 38 sockets
- Designed for initial dark period
What customers say
The HLG Flowering Initiator earns high marks primarily for its proven reliability and specialized performance. Experienced growers consistently report a noticeable acceleration in flowering initiation, confirming the bulb's effectiveness as an end of day treatment. Users appreciate the robust, quality construction typical of HLG products, ensuring durability. Integrating this specialized tool is straightforward, making it a valuable, high performance addition that delivers dependable results for serious cultivation efforts.
Know before you buy
The 730nm wavelength triggers the Emerson effect and shifts the plant's phytochrome state. This signals to the plant that the day has ended, effectively accelerating the transition from the vegetative stage to the flowering stage.
No, this bulb is designed for brief activation at the start of the dark period. It is intended to be used as a tool to manipulate the plant's biological clock rather than as a primary light source.
Yes, the HLG Flowering Initiator uses a standard E26 medium base, making it compatible with most common household light sockets and PAR 38 fixtures.
Yes, the bulb is rated for a maximum coverage area of 5' x 5'. For optimal results, ensure the bulb is positioned to provide even light distribution across your canopy during the brief activation period.
By using this bulb to initiate the dark period, you can effectively utilize a 13/11 light cycle. This helps plants transition into bloom faster than they might under a standard 12/12 cycle, potentially shortening your overall flowering time.
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$39