The Sylvania Grolux HPS bulb was designed specifically for greenhouse supplementary lighting. It has increased blue light and the highest PAR rating. This is the hottest bulb right now and is consistently out-performing the Hortilux.
Extreme high light output
Improved quality of light : increased red and blue light output
10% higher photosynthesis flux when compared to standard HPS 'super' bulbs
High PAR radiation
Lumens: 55,000
color temp: 2050 K
Shipping & Handling
We strive to provide the best service possible, with the highest regards to quality and shipping.
Here's what you can expect when placing an order with The Hydroponics Store:
All orders are shipped in discreet packaging for your privacy.
We work hard to have your order shipped out within 24 business hours but sometimes we're swamped, so it could take up to 48 business hours.
Orders ship via USPS by First Class Mail unless you select Priority.
First Class orders can take 3-5 business days to arrive.
Priority orders take 2-3 business days to arrive.
You'll receive an email and text message providing you with a tracking number once your package has been sent out.