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.

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Barrina 4FT T8 Plant Grow Light, 42W Full Spectrum LED Growing Lamp, 6 Pack | 252W(6x42W), V-Shaped Reflector, On/Off Switch, Linkable LED Grow Light for Indoor Plants, Greenhouse, Shelf, Pinkish White

Product ID: 179519096

Details

Brand
Barrina
Color
Pinkish White
Light fixture form
Pendant
Material
Aluminum
Style
Pack of 6

🌱Full spectrum for optimal plant growth

💡3100 lumens super bright output

🔗Link up to 6 lights seamlessly

1111.38 DT

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Description

🌿 Illuminate your indoor jungle with power, precision, and style!

EFFORTLESS SETUP - Install in minutes with included tape, clips, and cable ties—no pro needed
EYE FRIENDLY GLOW - Pinkish white light designed to protect your eyes while boosting plant health
SEAMLESS EXPANDABILITY - Link up to 6 units with new safe connectors for scalable indoor gardens
POWER PACKED BRIGHTNESS - 3100 lumens replace bulky 1400W lights with just 252W total power
OPTIMIZED PLANT ABSORPTION - 95%+ light energy absorbed thanks to full spectrum and V-shaped reflector

The Barrina 4FT T8 Plant Grow Light 6-pack delivers a full spectrum, energy-efficient 252W LED solution with 3100 lumens brightness and high PPFD. Featuring a V-shaped reflector and linkable design, it supports scalable indoor gardening with easy installation and eye-comforting pinkish white light, backed by a 2-year warranty.

Specifications

ASIN	B082ZKJZP1
Best Sellers Rank	#6,717 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #10 in Plant Growing Light Fixtures
Brand Name	Barrina
Brightness	3100 lm
Bulb Base	G23
Color	Pinkish White
Connectivity Protocol	Wired
Control Method	Push Button
Controller Type	Push Button
Customer Reviews	4.6 4.6 out of 5 stars (13,395)
Finish Types	Powder Coated
Fixture Type	Non Removable
Included Components	Light kit inlcuded
Indoor Outdoor Usage	Indoor
Installation Type	Flush Mount
Item Dimensions L x W x H	47.1"L x 1.3"W x 1.38"H
Item Weight	7 pounds
Light Color	Pinkish White
Light Fixture Form	Pendant
Light Output Maximum	3100 lumens
Lighting Method	LED
Manufacturer	Bailina Lighting Electric Appliance Co.,Ltd
Manufacturer Part Number	QL42
Manufacturer Warranty Description	2 years.
Material Type	Aluminum, Polycarbonate
Model Name	Barrina LED Grow Light
Model Number	QL42
Mounting Type	Ceiling / Hanging
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
Room Type	Indoor
Set Name	6-pack
Shade Color	White
Shade Material	Aluminum
Shape	T8
Size	4ft-6 Packs
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
Warranty Type	Limited
Water Resistance Level	Not Water Resistant
Wattage	42 watts

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1111.38 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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