LUMii Solar 315W Reflector – 315W CMH Reflector
LUMii Solar 315W Reflector – 315W CMH Reflector
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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
- 14-day returns
- Price match promise
- Free Wembley store pickup
- Advice from the team: 020 3488 0419
Description
Reshape the light from your LUMii Solar 315
The LUMii Solar 315W Reflector is the replacement reflector for the LUMii Solar 315W CDM fixture, made in two versions so you can match the light pattern to your space. The Closed version concentrates light onto a tighter area beneath the lamp, while the Wide Angle version spreads it further to reach more of the grow tent or grow room. Both have a hammered aluminium reflective surface that scatters light from the 315W CDM (CMH) lamp for a more even spread across the canopy.
Key Benefits
- Two light patterns - Closed for focused intensity, Wide Angle for broader coverage.
- Made for the LUMii Solar 315W CDM fixture, so it fits without adapting anything.
- Hammered aluminium finish breaks up reflections and reduces hotspots.
- Easy to install and replace when the old reflector has dulled.
- Brings back lost output from a tired, dusty or scratched reflector.
Why Replace a Reflector?
A reflector loses its shine as it collects dust, oxidises and picks up scratches, and every bit of reflectivity it loses is light that never reaches the plants. Less light at the canopy means slower growth and more stretch. LUMii recommend changing the reflector around every six months to keep output where it should be. Swapping between the Closed and Wide Angle versions also lets you reshape coverage when you change the layout or the number of plants under the light.
How to Use
- Power down: switch off at the mains and let the lamp cool completely.
- Remove the lamp by its base and swap the reflector on the LUMii Solar 315W fixture.
- Refit the lamp without touching the glass, and check every connection is secure.
- Re-check the hanging height after changing version, watching the top of the canopy for heat stress or bleaching.
Technical Specifications
- Brand: LUMii
- Fits: LUMii Solar 315W CDM fixture
- Lamp type: 315W CDM / CMH
- Versions: Closed (focused light), Wide Angle (wider spread)
- Reflective surface: hammered aluminium
- Recommended replacement: about every 6 months

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 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.
