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Engineered by BloomLED, a horticultural LED lighting expert for over 10 years, the SpectraB.2.G UV60 is a 30 W supplemental bar dedicated to the flowering phase. Its UV-A spectrum targets the natural production of terpenes and pigments for more aromatic, more colourful and more resinous harvests.

UV-A radiation is one of the most underrated levers in indoor growing. Outdoors, sunlight exposes plants to a fraction of ultraviolet light that triggers a defence response: the plant produces more secondary metabolites, notably the terpenes behind aroma and the pigments that intensify colour. Indoors, most primary lamps emit little to no UV. The SpectraB.2.G UV60 fills exactly that gap by delivering controlled supplemental UV-A without inflating your power draw.
At just 30 W across 60 cm, this bar slots easily into a grow tent alongside your main light. Its passive, fanless cooling guarantees completely silent operation and adds no parasitic heat to your space. Being waterproof, it withstands water vapour and the inevitable splashes of watering, making it a reliable, durable piece of equipment built for the real-world constraints of indoor cultivation.
Adding UV-A to your lighting strategy means chasing quality as much as yield. Experienced growers run this kind of supplement during the final weeks of bloom to accentuate the terpene profile, densify resin and produce visually more striking flowers. The SpectraB.2.G UV60 makes that technique accessible: compact and plug-and-play with a simple timer, it integrates into any existing setup without reworking your gear.
| Specification | Detail |
|---|---|
| Brand | BloomLED — designed in France |
| Model | SpectraB.2.G UV60 |
| Reference | BL-SPECTRAB2G-UV60 |
| Power | 30 W |
| Length | 60 cm |
| Spectrum | UV-A (flowering-specific) |
| Coverage | ≈ 60 × 20 cm |
| Cooling | Passive, fanless, silent |
| Waterproof | Resists vapour & splashes |
| Dimming | Not dimmable — external timer |
| Warranty | 2 years |
The UV-A spectrum stimulates terpene and pigment production. Your buds gain aroma, colour and resin density for noticeably higher harvest quality.
Just 30 W for a targeted supplement: you enrich your setup without inflating your electricity bill or thermal load.
Passive cooling removes any fan. No noise, no vibration: your grow space stays calm and discreet, day and night.
Its waterproof design resists humidity, vapour and water spray. A durable fixture perfectly suited to humid grow environments.
Compact at 60 cm, it mounts easily 30-40 cm from the canopy, overhead or to the side, for even UV coverage with no hot spots.
Designed in France and trusted by our community of demanding growers, it draws on 10 years of BloomLED lighting experience and a 2-year warranty.
For optimal results, position the SpectraB.2.G UV60 30-40 cm above or beside the canopy. This distance ensures effective UV-A penetration while avoiding excessive stress. As the bar is not dimmable, drive it with a reliable external timer, syncing the UV cycle with your flowering photoperiod. Always use it alongside a main light such as the SpectraBULB X55, and keep the room well ventilated. Important: UV-A requires precautions — avoid direct, prolonged eye and skin exposure while it is running.
No. It is a supplemental UV-A bar. Use it in addition to a main light (such as the SpectraBULB X55) that provides the full growth and flowering spectrum.
How far from the plants should it be installed?Ideally 30-40 cm from the canopy. This distance ensures good UV-A diffusion without any risk of stress or burn to your plants.
How many hours of UV-A per day?Typically start with a few hours per day during flowering, increasing gradually. An external timer automates the cycle since the bar is not dimmable.
Is it really waterproof?Yes. Its waterproof design resists water vapour and splashes, making it reliable in the humid environments typical of indoor growing.
What area does it cover?Its useful coverage is roughly 60 × 20 cm. For larger spaces, choose the SpectraB.2.G UV120 or combine several bars.
A simple, silent and energy-efficient UV-A supplement that takes your flowering quality to the next level — the BloomLED signature, designed in France.