Skip to content
At checkout, use discount code: take5
At checkout, use discount code: take5

Slim Killa Watt 350 Bloom - Dimmable LED Grow Light -(4/30 Release)

Save 37%
Original price $599.00
Current price $379.00



                          USA Orders: 1-5 business day delivery

                          EU, UK, AU & CA: Ships within 2 business days

                          Japan Orders: Ships within 2 business days


      Slim Killa Watt 350 Bloom is a next level grow experience with Flowering specific Spectrum to the extreme that guarantees you Thicker buds, Fatter yields, increased Resin and terpenes production as well as faster flowering cycle times. Equipped with our latest Killa Watt Tech 4 ROW LED Bars featuring 240 Deep Red LEDs & 306 Total Bloom Enhancers upgrades your premium flower quality to cloud 9. Increase Yields further by adding the Optic LED v3 Controller with the auto sunrise and sunset as well as environmental monitoring.

Coverage Footprint:

Flower:                                           Veg:           

2' x 4' area (1.2m x 1.2m)                        5' x 5' area (Up to 7' x 7' area)

 (2' x 4' Grow Tent / 0.6m x 1.2m)

Hanging Height : 

Flower: 6"-36"    

Pro Tips: set the light up higher and let the plants grow up into the light.
Recommended Dimmer Settings & Hanging Height:   


30"-48" + / 50% Power (or 24" @ 25%-30% Power)


Wk1-3  @ 30"-36"  / 100% Power
Wk4-6 @ 24"  / 100% Power
Wk7-8 @ 18"  / 100% Power
Wk9 @ 12" / 100% Power

Slim Killa Watt Components:

LEDs: 1,650+ Total LEDs 

Full Spectrum White Light LEDs: 

- Top Bin Samsung LM281B+ 3500K Mixed White LEDs - (.5w LEDs)

Bloom Enhancers:

- 240 Deep Red LEDs - Optic LED X401 Deep Red- 660nm

- 42 Royal Blue LEDs (.5w) - Optic LED X401 Royal Blue - 450nm

- 12 Ultra Violet LEDS - Optic LED UV-X

- 12 infrared LEDs. (ir) (.5w) -  Optic LED iR-X

Optics: 120 Degree Primary Lens on all LEDs 

(Secondary Optics is 120 Degree reflector built into the Heatsink

Lenses sold separately - Required for Growers who use sprays

Driver: 0%-100% Sosen Industrial Grade Dimmable Drivers.

Dimmers: 1 Dimmer with 0%-100% Full Range Dimmability

Dimmer#1 (White + Red + Blue + UV + ir ) - 500 watts

Controller Tech: Fully Compatible - (*V3 Touch Screen Controller is Sold Separately)

Dual Port RJ-11 Controller hookup  - Daisy chain up to 200 lights

Thermal management: Passive Cooling from extruded fin Heat sink (Fanless Technology - No Moving Parts) 

Slim Killa Watt 500 Bloom Spectrum:

PPFD Charts for Slim Killa Watt 500 Bloom: 

6" Hanging Height - 1192 PPFD

12" Hanging Height - 

18" Hanging Height - 

24" Hanging Height - 

Slim Killa Watt 350 Bloom Specifications:

LEDs: 1,650+

HID/HPS equivalent: 1500w HPS

Kelvin: 3500K Day Light White

IP Rating: IP67

Grams Per Watt: up to 2.4

Yield in 4x4 / 1.2m: Up to 1.5 lbs 

LEDs Per Watt: 4.8

PPFD @6": 1,192

ppf/w :  2.6 umols/J

ppf : 1,570 umols

Actual Power Draw: 350 watts max

Amps:  3.1amp @ 110v / 1.5Amp @240v

Voltage : Internationally Used 110 volts -277v

Lifetime: 100,000 Hours+  

Warranty: 7 Years Warranty - 5 Years full - 2 year limited

Release Date: April 30th 2024

Shipping: Free Shipping To USA - International shipping calculated at checkout

Light Fixture: 42" x 21" Vertical Farming Aluminum Fixture - folds in half

Cables: 6 Foot attached power cord 

Plug: USA, Japan, Canada, EU, UK, 240v Commercial, etc.

(We ship the correct cord for your country)

Dimming: Single Dimmer on right side: 0%-100% Dimming.

Master Controller: 2 Built in Controller Ports - Add the touch screen controller is optional *adds auto sunrise/sunset feature, Manual Dimming & multi light control.

Fixture Weight: 16 lbs (With Driver top-mounted)

Shipping Weight: 18 lbs 

Hanger: Comes with 4 adjustable rope ratchet hangers.

Recommended for: Grow Tents, Grow Rooms, Greenhouses & Indoor Cultivations. 

*International Shipments may require Taxes & Duties. Contact us for a quote! - 

Slim Killa Watt Patent Pending.




#1 The Most Deep Red LEDs of any Light in the 2x4 Grow space Class (240)

#2 The Most Bloom Enhancers of any Light in the 2x4 Grow space Class (306)

#3 The Most UV and IR LEDs in its class (12 of each)

#4 Ranks in the top 10% for PPFD Output in the 2x4 Grow space class

#5 1 of the Best Spectrum's Ever Created across all wavelengths