Optic Foliar WATTS (RTU) – Maximise Light & Nutrient Absorption Optic Foliar WATTS RTU is a high-performance foliar spray that boosts photosynthesis and light absorption, helping plants make the most of available energy. By increasing the efficiency of light and nutrient uptake, WATTS ensures faster, healthier growth and bigger, more productive plants. WATTS is known to increase NPK's by 29% and Micro Nutrients by 11% just FOUR hours after spraying, making it a powerful tool in every growers arsenal. For best results, use Optic Foliar WATTS together with Optic Foliar TRANSPORT. TRANSPORT acts as a delivery agent, helping WATTS absorb directly into the leaf without leaving residue. This powerful combination lets you spray during lights on without causing burn or stress - making it one of the safest and most effective foliar applications available. Add TRANSPORT to your routine to maximise uptake and see even faster, healthier growth. Enhances Light Absorption – Helps plants make better use of HID, LED, and natural light. Improves Nutrient Uptake – Works with your feeding regime to maximise nutrient efficiency. Can Be Used with Lights On – No need to adjust your lighting schedule—apply anytime. Reduces Energy Waste – Ensures plants absorb as much light as possible, minimising wasted energy. Concentrated Solution - A little goes a long way at 7.5ml per litre of water!