here are the specs, note the royal blue/ deep blue and white leds have changed
also the form factor design has changed, no more crappy capcaptive buttons
as far as side by side appearance over a tank, i haven't been able to find any info on that you would think if it was a dramatic improvement/un-improvement someone would have made a review on it by now
g2 Pro
• White: 8 Cree XT-E Cool White (5w each)
• Red: 4 Osram Oslon SSL Hyper Red, 660nm (3w each)
• Yellow: 2 Osram Oslon SSL Yellow, 590nm (3w each)
• Green: 4 Cree XP-E Green, 520nm (3w each)
• Blue: 8 Cree XP-E Blue, 468nm (3w each)
• Royal Blue: 8 Cree XT-E Royal Blue, 442nm (5w each)
• Indigo: 4 SemiLEDs UV, 415nm (2.5w each)
• Ultraviolet: 4 SemiLEDs UV, 405nm (2.5w each)
Max Wattage of Radion Fixture: 170 Watts
Max Wattage of LED Channels: 155 Watts
G3 Pro
MAX PAR: 1100
• Cool White: 8 Cree XP-G2 (40W)
• Deep Blue: 8 Osram Oslon Square (40W )
• Blue: 8 Cree XP-E (24W)
• Green: 4 Cree XP-E (14W)
• Hyper Red: 4 Osram Oslon SSL (12W)
• Yellow: 2 Osram Oslon SSL (6W)
• Indigo: 4 SemiLEDs (10W)
• UV: 4 SemiLEDs (10W)
WATTAGE
Variable Usage: 170W