Are these led lights dimmable?

The cords have an on/off rocker switch built in. Generally this style of LED is not dimmable. Each is individually not that powerful. I am adjusting the intensity by adding and subtracting tubes and adjusting the height over the plants. It is working out fairly well. For an 18" x 48" shelf I am using 3 tubes. I just used these this season for seed starting and those plants were just put in the garden. They worked well.

How many lights and what distance for sowing seeds for 48"x24" flats?

We do not use them for seed flats at this time but will likely do so next spring, These are very bright, powerful lights. I would use no more than two 48 inch per flat. Not knowing your location or setup I do not think that these bulbs will generate enough heat without other supplemental heat.

How far apart in parallel should the lights be placed for growing seedlings?

The height would also need to be considered as for spacing in parallel. 12 to18 inch for approx 12 in height

I bought a six pack of 2' lights. the shelf is 16" x 36". How many 2 foot lights per shelf?

I turned my walk in closet into a nursery. I have 3 long shelves around 4’ in length and 2.5’ in depth. I use 2 lights per shelve. That’s been working for me.

Barrina 4ft T8 Grow Light 42w Full Spectrum Grow Light

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

R8937

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Description

🌿 Grow smarter, not harder — light up your indoor jungle with Barrina brilliance!

EYE FRIENDLY GLOW - Soft pinkish-white light protects your eyes while creating an inviting environment for your plants and workspace.
SPECTRUM FOR SUCCESS - Full-spectrum light tailored to maximize plant absorption and growth, mimicking natural sunlight perfectly.
COOL DURABLE DESIGN - 100% aluminum shell ensures superior heat dissipation, extending LED lifespan and maintaining peak performance.
POWER MEETS PRECISION - 42W LED grow lights deliver ultra-efficient, high-output lighting that replaces bulky 1400W traditional setups.
PLUG PLAY PERFECTION - Effortless installation with included clips, tapes, and connectors—link up to 6 lights for scalable indoor gardens.

The Barrina 4FT T8 Grow Light 6-pack offers a cutting-edge, full-spectrum LED solution designed for indoor plant enthusiasts and professionals. With 42W power consumption and 3100 lumens brightness, these lights replace traditional 1400W setups while ensuring over 95% light absorption by plants. Featuring a durable aluminum body for optimal heat dissipation, easy installation with included accessories, and the ability to link up to six units, this grow light set is perfect for hydroponics, greenhouses, and home grow tents. Its eye-friendly pinkish-white glow balances plant needs with user comfort, making it a must-have for anyone serious about indoor gardening.

Specifications

ASIN	B082ZKJZP1
Brand Name	Barrina
Brightness	3100 Lumen
Bulb Base	G23
Color	Pinkish White
Connectivity Protocol	Corded
Control Method	Push Button
Controller Type	Push Button
Customer Reviews	4.6 4.6 out of 5 stars (2,155)
Efficiency	Higher than HPS/MH lights
Finish Types	Powder Coated
Fixture Type	Non Removable
Included Components	Power cords with ON/OFF switch, connecting cords, small connectors, installation clips, tapes, cable ties
Indoor Outdoor Usage	Indoor
Installation Type	Flush Mount
Item Dimensions L x W x H	119.6L x 3.3W x 3.5H centimeters
Item Weight	3.18 kg
Light Color	Pinkish White
Light Fixture Form	Pendant
Light Fixture Installation Location	roofing
Light Output Maximum	3100 Lumens
Light Source	LED
Lighting Method	LED
Manufacturer	Bailina Lighting Electric Appliance Co.,Ltd
Manufacturer Part Number	QL42
Material Type	Aluminum Polycarbonate
Model Name	Barrina LED Grow Light
Model Number	QL42
Mounting Type	Ceiling Mount
Number of Items	6
Number of Light Sources	6
Other Special Features of the Product	Easy Installation, Full Spectrum, High PPFD, Linkable
Power Source	AC
Recommended Uses For Product	for indoor using
Required Assembly	Yes
Room Type	Indoor
Set Name	Pack of 6
Shade Color	White
Shade Material	Aluminum
Shape	T8
Size	4FT
Specific Uses For Product	Indoor use only
Style Name	Pack of 6
Switch Type	Push Button
Theme	Indoor Use, Plant Growing
Unit Count	6 Count
Voltage	270 Volts
Water Resistance Level	Not Water Resistant
Wattage	42 watts

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.