Optic Foliar Watts
Optic Foliar Watts
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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
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A light-energy foliar spray that turns more of your lighting into usable growth
Optic Foliar Watts is a ready-to-use foliar spray built to help plants absorb and process more of the light energy already hitting the canopy, rather than adding another root-fed nutrient to the tank. It works by boosting chlorophyll production, so leaves capture more light, and by raising ATP levels, the energy currency plants use to fuel growth - together pushing the Calvin Cycle harder and converting a greater share of available light into usable energy for development.
Watts is formulated to be sprayed with the lights on, using a mix of high-quality minerals, natural plant boosters and absorption-enhancing compounds that need no pH adjustment before application. It is designed for use through propagation, vegetative growth and into early flower, typically up to around week four of bloom, and is built to be layered with Optic Foliar's Transport and Rev products for a complete foliar programme rather than used in isolation. Growers use it where light intensity is high and growth needs to keep pace - HID, LED and natural sunlight are all suitable, and the formula will not curl, burn or otherwise stress leaves when applied correctly.
- Boosts chlorophyll and ATP - helps plants capture and use more light energy
- No pH adjustment needed - ready-to-use, straightforward foliar application
- Works under any light - suited to HID, LED and natural sunlight
- Spray with lights on - no need to time applications around the dark period
- Part of a system - designed to be layered with Optic Foliar Transport and Rev for full effect
- Growth stage: propagation, vegetative and early flower (to approx. week 4)
- Application: foliar spray, 5ml/L on seedlings and cuttings, 7.5ml/L in veg and flower
- Frequency: 2-3 times per week during growth, tapering through early flower
- Compatibility: mixes with Optic Foliar Transport and Rev
| Stage | Per 1 L | Per 10 L |
|---|---|---|
| Seedlings and cuttings | 5 ml | 50 ml |
| Vegetative growth and early flower, to about week 4 | 7.5 ml | 75 ml |

FREE Express Delivery on orders over £60. We aim to post same day for next-working-day arrival — order by 3pm Mon–Fri. Delivery is 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.