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Lamps/Bulbs

Dimlux BLV 1000W DE EL Metal Halide
Dimlux

BLV 1000W DE EL Metal Halide

Dimlux BLV HORTURION MH 1000W EL DE 5.5K bulb, PAR of 1800 µmol/s for optimum v..
£129.95
Sun Blaster T5HO Replacement Lamp 2700K
Sun Blaster

T5HO Replacement Lamp 2700K

SunBlaster T5HO lamps provide the ideal spectrum for seed, cuttings and plant gr..
£8.95
Misc. Electrical Products CFL Lamp
Misc. Electrical Products

CFL Lamp

CFL Lamps give off less heat than any other growing light bulbs - and require no..
£29.95
Adjust-A-Wings E40 - Lamp Holder
Adjust-A-Wings

E40 - Lamp Holder

Adjust-A-Wings E40 lamp holder. The lamp holder has an E40 bulb socket that is a..
£24.95
Philips MASTER GreenPower SON-T PIA 400V 600W EL Lamp
Philips

MASTER GreenPower SON-T PIA 400V 600W EL Lamp

Philips MASTER GreenPower Plus 400V 600W Lamps have been specially designed for ..
£49.95
Philips MASTER SON-T PIA Plus Lamp 600W 230V
Philips

MASTER SON-T PIA Plus Lamp 600W 230V

Philips SON-T PIA Plus 600W 230V light bulbs are high pressure sodium discharge ..
£44.95
Adjust-A-Wings DE HPS Lamp 750W
Adjust-A-Wings

DE HPS Lamp 750W

Adjust-A-Wings special designed Hellion DE-HPS lamp runs perfectly at both 600W ..
£59.95
Sunmaster Metal Halide Finishing Deluxe Lamp
Sunmaster

Metal Halide Finishing Deluxe Lamp

Sunmaster designs and manufactures a complete line of metal halide lamps with sp..
£39.95
Sunmaster SONT+ DS
Sunmaster

SONT+ DS

SUNMASTER SONT+ DS 600w - The Sunmaster Dual Spectrum lamp is scientifically dev..
£14.95
Philips MASTER Greenpower SON-T PIA 600W Lamp 230V
Philips

MASTER Greenpower SON-T PIA 600W Lamp 230V

Philips Master GreenPower 600W / 230 Volt HPS Lamp is a single-spectrum lamp wit..
£39.95
Philips 315W CDM 942 Daylight 4200K Grolux 600W (Grow)
Philips

315W CDM 942 Daylight 4200K Grolux 600W (Grow)

Philips 315W CDM 942 Daylight 4200K Grolux 600W Lamp has that extra blue light m..
£104.95
Misc. Electrical Products Dual Spectrum DE Lamp 1000W
Misc. Electrical Products

Dual Spectrum DE Lamp 1000W

400v lighting technology is being used widely across the horticulture industry, ..
£54.95
Maxibright Metal Halide Bulb 600W
Maxibright

Metal Halide Bulb 600W

Maxibright Metal Halide Bulb is on the end of the blue spectrum, which is high-i..
£29.95
Sunmaster 600W 400V Bulb
Sunmaster

600W 400V Bulb

Sunmaster 600w/400v Dual Spectrum HPS lamp is a radically new, scientifically de..
£34.95
Sylvania Grolux DS Lamp 400W
Sylvania

Grolux DS Lamp 400W

The Sylvania Grolux HPS bulb was designed specifically for greenhouse supplement..
£25.95
Gavita Pro 1000W 400V EL DE (2100μmol s-1) UK
Gavita

Pro 1000W 400V EL DE (2100μmol s-1) UK

Gavita Pro 1000W 400V EL DE is specifically designed for high voltage, high freq..
£95.95
Philips 315W CDM 930 3000K Agro
Philips

315W CDM 930 3000K Agro

With a color temperature of 3000K, Philips CDM-TMW Elite 315W 930 PGZX18 will pr..
£104.95

The most common type of grow-light bulb is the T5 & T8 LED Tube Light. The bulb is most often found in (more or less) 6,500 Kelvin, which is the color temperature of the light we see at daylight. Traditionally, blue lights would be used to provide plants with this necessary wavelength. Plants undergo vegetative growth during daylight hours, so this light is beneficial to plants during the vegetative stage of growth.
Bulbs that are ~2,700 Kelvin are beneficial to plants in the flowering and fruiting stages of growth. This is the color temperature during sunrise hours of the day. Bulbs that are 2,700 to 2,700 Kelvin are traditionally warmer in color, with more red and orange tones. The red lights used by some growers would deliver this color-temperature to plants.

Both the 2,700 and 6,500 Kelvin lights are available as white LEDs, so there is no need to use red or blue lights anymore. We recommend using fixtures that hold four bulbs, and alternating the 2,700 and 6,500 Kelvin bulbs in the fixture. This will ensure that plants receive the benefits of both.

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