250W growth and flowering lamps for plant lighting. Metal halide and sodium lamps with lower power. Top brands Osram, GIB Lighting, Philips, Elektrox.
We offer 250W lamps in both HPS (high pressure sodium) and MH (metal halide) versions. Proven producers of quality plant lighting have included GIB Lighting, Philips, Osram for many years, and Elektrox for the last few years. All 250W lamps in the growshop's offer will illuminate plants on approximately 0.4 - 0.7m2.
Sufficiently high-quality lighting is a necessary condition for plants to develop perfectly. Plants convert sunlight into usable energy during photosynthesis. True sunlight consists of the entire color spectrum. The blue-white and red-yellow spectrum are important for plant life. Metal halide (MH) lamps have an increased proportion of blue-white light and are more suitable for the growth period. High-pressure sodium (HPS) lamps with a red-yellow spectrum mainly support lush flowering.
Any 250W discharge lamp will only illuminate a small space well, it can be recommended, for example, for smaller grow tents Homebox Ambient Q80 or Secret Jardin Dark Street DR60, etc.
The plant has slightly different requirements during the growing period and during the flowering period. During flowering, the plant requires a high-quality red-yellow light spectrum. Lighting with a blue-white spectrum is more suitable for the growing period, as it supports the development of the green parts of the plant.
All 250W flower lamps in the offer are capable of providing plants with at least 32,000 lumens. The highest PAR value (up to 440 umol/s) can be boasted by the GIB Lighting Flower Spectrum XTreme Output 250W HPS lamp. The Pure Bloom Spectrum Xtreme Output 250W HPS lamp from the same manufacturer is also a quality choice for the flowering period. Both were developed specifically for the needs of growers and gardeners.
When buying a lamp, most novice growers decide based on the luminous flux (lm), or the color temperature (K), or the lifespan. The price is also an important parameter. But perhaps the most important feature is the PAR value. PAR is photosynthetically active radiation, which shows the amount of light that can actually be used for photosynthesis per second. If you are not limited by budget, give preference to 250W lamps with a high PAR value.
Wattage - Is the energy output of the discharge lamp (Watt)
PAR - Shows the value of photosynthetically active radiation, the amount of emitted light usable for photosynthesis per second (micromol/s).
Luminous flux – Amount of light emitted (Lumen).
Type of light – Compared to other types of lighting, discharge lamps are the most powerful and efficient.
Light spectrum – Red-yellow for flowering, blue-white for growth, combined for growth and flowering.
Color temperature - The more Kelvin, the more white to blue the light is and the more suitable for the growth period.
Lifespan – minimum lamp life
Dimmability – Electronic ballasts can only regulate the output of dedicated, dimmable discharge lamps.
The data for discharge lamps is based on the manufacturers' documentation. Some manufacturers do not list all important parameters.
Use only compatible 250W ballasts, sockets and other accessories. Always allow the lamp to warm up for a few minutes. After it goes out, let it rest for a few minutes before lighting it again.
The lamp emits heat in addition to light, so make sure you keep the correct distance from the tops of the plants so that they do not burn. Never touch the glass of the lamp with a wet hand, use gloves or a cloth. Moisture on the glass can cause damage after the lamp is turned on. Never look directly into the light of the lamp, you can damage your eyesight. The lamp is very fragile, always handle it with great care. Do not use damaged lamps.
Do not touch the glass of the lamp during operation or immediately after switching off. Do not throw used lamps in the general waste, but use special containers.
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