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PAR+ LED - ULTRA 640 SE Mesh LED Grow Light.


Powered by Samsung LM301H + LM351H Horticulture LEDs.


Introducing the PAR+ LED ULTRA 640 SE powered by Telos Mesh! Designed, manufactured an assembled in the UK by expert lighting technicians from the ground up, this LED grow light boasts unrivalled functionality and flexibility alongside an engine efficacy of (3.3μmol/j EST). With a frame size of 100cm, the ULTRA 640 SE can cover a footprint of 1.2m x 1.2m (4ft x 4ft); providing an exceptionally even distribution of photons over these footprints and helping growers to achieve perfectly uniform canopies, balanced flower production and excellent harvests.


Made In Britain

Our uncompromising demand for the highest levels of quality and integrity have allowed us to achieve the Made In Britain accreditation mark. We're one of only a select few LED lighting brands who have received this mark and we're extremely proud to have achieved this. With the backing of this independent mark of provenance - which can only be achieved by passing rigorous criteria - you can be confident in both the build-quality and performance of the ULTRA. After all, only the highest quality LED grow lights can genuinely call themselves Made In Britain! Membership Number 3347.


Algorithmically Spaced Samsung LEDS.

The ULTRA 640 [SE] features 8 of our new ULTRA light engines. Each Light engine within the ULTRA range features 320 of the highest bin 'full spectrum' Samsung LM301H LEDs with a mix of 3000K/4000K diodes as well as 10 Samsung LM351H V2 660nm deep reds. This combination of mixed 'full spectrum' and deep red LEDs creates the perfect spectral balance and is guaranteed to provide better harvests than other recipes. Our PCBs are protected by a water-resistant conformal coating, improving LED resilience and allowing for easy cleaning.

Mesh Driver With Bluetooth Control

Working in partnership with Telos, we're excited to be the first third party LED grow light manufacturer to power our ULTRA LEDs with the innovative Mesh system. The Mesh drivers are a SELV certified power supply that operate at low voltage (48V), making them an incredibly safe choice for grow rooms and commercial applications alike.

When used with the Telos mobile app, you'll have complete and secure control over your ULTRA LED fixtures from your fingertips; no expensive controllers, no masses of wiring - just simple and effective control. With the Telos app and Mesh driver system, you can dim either by selecting a percentage of total power or by choosing Precise PPF™ output, as well as creating custom lighting schedules, sunrise/sunset modes, independent groupings and 5-step manual touch overrides.

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Fully Modular Design

Each ULTRA strip is fixed to a parallel rail system via an integrate ball-bearing slider and thumb screws, allowing you to easily reposition all light engines to any desired configuration and achieve the most optimal photon distribution for your shape/size grow space without any tools. The modular nature of our design also makes upgrading and expanding easy; each strip possesses a disconnectable waterproof connector and thumb screws so that the fixture can be disassembled with ease.


What's in the Box

1. PAR+LED ULTRA [SE] 640 LED Grow Light

2. 2x 320w Mesh Power Supply

3. 4x Professional Hangers

4. Instruction Manual

5. Merchandise Pack


Warranty information

We're so confident in the construction and component quality of our PAR+LED lights that we're backing it with a 5 year warranty and lifetime service guarantee. CLICK HERE TO FIND OUT MORE



Hanging height

Veg 18"+

Flower 10-18"

Wattage +/- 5%

OFF- 80w-160w-240w-320w

Engine efficiency 


System efficiency 




3.3 μmol/j EST


3.1 μmol/j EST


Light Size 

Driver Size 

Light Weight

Driver weight

520mm (W) x 1000mm (L) x 40mm (H)  [x2] total size 1040mm (W) x 1000mm (L) x 40mm (H)

260mm (L) x 80mm (W) x 44mm


  Flower Footprint

1.2m x 1.2m (4ft x 4ft) or 1.5m x 1.5m (5x5) area

Test report Downloads





We aim to dispatch all orders made before 2PM the Same day. This excludes weekends and bank holidays.

All items are sent in plain secure packaging with no logos. Once dispatched you will receive tracking information. Average delivery time is 1-2 days after dispatch for UK customers. Please contact us if your order hasn't arrived within 5 working days from payment for UK customers and 7 working days for EU customers.

Mainland UK - Delivery is free when you spend over £65. Or £6.95 if the total order value is under £65. All orders are sent on next day working day delivery via DHL. 

NI/Scottish highland/Other non standard postcodes - Delivery is £12.95 All orders are sent on 48H delivery via DHl


We will replace any item that arrives damaged.

If your product arrives damaged. Please contact us immediately to claim a replacement.

A limited replacement warranty is offered on all our products. Please check the product listing for the exact warranty time given. If your unit becomes faulty please return it to us for a replacement.

Replacements will only be given once the faulty unit has been inspected.

Warranties are not given due to customer misuse. If we find your return to be in working order, or damaged due to misuse it will be returned to you and no replacement offered.

Proof of purchase must be shown.



We offer a 30 day cancellation policy. A 20% restocking fee will be applied to your order. Refunds can take up to 5 working days to process. 

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