Electricity + Control April 2019

LIGHTING

LEDs are having the greatest impact in the growing of leafy greens and herbs that can be grown in layers, with each layer having a dedicated set of LED luminaires.

Many growers, especially in the cannabis sector, have suffered losses – because of poor fixture per- formance – in early attempts to deploy LED lighting. However, documented benefits of LEDs in hor- ticulture continue to grow, offering a more robust

food supply. No doubt, there are other advantages that have yet to be discovered.

Sources: www.ledil.com; www.ledsmagazine.com; www.specgradeled.com

Horticultural lighting in South Africa

South African lighting manufacturer, Giantlight, is at the forefront of horticultural lighting in South Africa and has recently released two products specifically for this market; GrowLED Maxi and Megaledbay GrowLED. TheMegaledbay GrowLED offers broad spectrumwhite LEDswith far red on a separate, switchable circuit with a pendant cablewith a clutch for easy suspension and height adjustment.

Specifications include: Megaledbay GrowLED * Body construction: Powder-coated mild steel. Available in SS on request. * Lens type: 4 mm Polycarbonate * Supply voltage: 230 V ac 50 HZ * Total circuit load: 100 W plus 10 W when far red is activated (110 W total) 200 W plus 20 W when far red is activated (220 W total) * Lumens: 100 W – 13 600 lumens for broad spectrum white 200 W – 27 200 lumens for broad spectrum white * IP rating: IP 65 * Control type: Standard - no control, on or off 1-10 V control available

GrowLED Maxi: * Body construction: Powder-coated mild steel. Available in SS on request.

* Lens type: 4 mm Polycarbonate * Supply voltage: 230 V ac 50 HZ Total circuit load: 408 W 430 W – With far red * Lumens: 59 560 (Broad spectrum white) * IP rating IP 65 * Control type: Standard – no control, on or off

1-10 V control available DMX control available DALI control available * Power factor: Better than 0,97

DMX control available DALI control available * Power factor: Better than 0,97

www.giantlight.co.za

26 Electricity + Control

APRIL 2019