Welcome to Invisible Sun LED - UK Manufactured LED Lighting systems - Now shipping world wide contact via email enquiry@invisiblesunled.co.uk or call us on +44 151 647 3002

Which light for which space ?

We get asked a lot which light is best suited to a particular space, in general we advise between 30 to 40 watts per square foot of growing space. Use either the Light calculator below or follow the links to our lights in the list below. 


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For full cycle and flowering 


2 ft x 2 ft (60cm x 60cm) Space

ISH150 Pro Draws 141w

ISH150 Type R Draws 144w

2.5 ft x 2.5 ft (75cm x 75cm) Space

ISH 3R Draws 215w

2ft x 4ft (60cm x 120cm) Space 

- Draws 280w

ISH265 XL Type R - Draws 280w

ISH360 - Draws 340w

ISH360 Type R - Draws 360w

ISH 4R XL - Draws 285w

3 ft x 3 ft (90cm x 90cm) space 

ISH265 pro - Draws 280w

ISH240-H - Draws 260w

ISH 4R - Draws 285w

1m x 1m space 

ISH320 - Draws 324w

ISH480 - Draws 450w


4 ft x 4ft (1.2m x 1.2m) space 

ISH530 Pro XL - Draws 540w

ISH530 Type R
- Draws 550w

ISH600H - Draws 640w


5ft x 5ft (1.5m x 1.5m) space

2 x ISH360
- Draws 680w

2 x ISH360 Type R - Draws 720w