can they work with dimmer switches?

Some CFLs can and some cannot; I don't believe this particular kind will work with a dimmer switch. Look for the word "dimmable" on the packaging to find CFLs that will.

What is the recommended distance between light/bulb and plants?

You can also try... Use different distances and see if your plant leans toward the light!

Can these bulbs be used on a lamp that says to use 60 watt Type A bulbs ? It is small desk lamp. - thanks !

Yes, Type A is the standard base and the CFL is a 13w CFL (13w CFL=60w incandescent). 13wCFL is the largest watt you can use.

Does it have mercury inside?

Part of my packaging was thrown away,but I did not see anywhere that these contain mercury. Not sure, but I thought they all had mercury....

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SunBlaster 13 Watt CFL Grow Light Bulbs, 6400K, Set of 4, 1100 Lumen

Product ID: 3591494

Details

Brand
SunBlaster
Bulb Shape Size
T
Light Type
CFL
Special Feature
Energy
Wattage
13 watts

🌞6400K daylight spectrum

💡13W energy-efficient CFL bulbs

🔋10,000 hours lifespan

Description

🌿 Light up your indoor jungle — because your plants deserve the spotlight!

BOOST YOUR GREEN SPACE - Perfect for succulents, herbs, and houseplants craving consistent, vibrant light.
PLUG PLAY SIMPLICITY - Screws into any standard socket—no extra ballast or setup needed.
LONG LASTING PERFORMANCE - Bulbs rated for 10,000 hours keep your plants glowing season after season.
YEAR ROUND INDOOR GROWTH - Replicates natural sunlight with 6400K spectrum for thriving plants anytime.
ENERGY SMART ILLUMINATION - Delivers 900 lumens at just 13 watts, saving power without sacrificing brightness.

The SunBlaster SL0900151 is a set of four 13-watt compact fluorescent grow bulbs designed to mimic natural sunlight with a 6400K color temperature. These energy-efficient bulbs produce 900 lumens each, fit standard light sockets without extra ballasts, and offer a long 10,000-hour lifespan—ideal for year-round indoor plant growth and boosting your home’s green vibe.

Specifications

ASIN	B00AKKUZ7I
Accepted Voltage Frequency	100 to 120 Volts and 60 Hertz
Additional Features	Energy Efficient
Best Sellers Rank	#204,706 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #119 in Plant Growing Light Bulbs
Brand	SunBlaster
Brand Name	SunBlaster
Bulb Base	E26
Bulb Diameter	9.5 inches
Bulb Shape Size	T
Color	White
Color Rendering Index	80
Color Temperature	6400 Kelvin
Connectivity Technology	Normal bulb
Control Method	App
Controller Type	Push Button
Customer Reviews	4.5 out of 5 stars 1,119 Reviews
Incandescent Equivalent Wattage	13 watts
Indoor Outdoor Usage	Indoor
Item Dimensions W x H	9.5"W x 11"H
Item Type Name	SunBlaster 13 Watt CFL Grow Lamp 4 pack
Light Color	White
Light Source Operating Life	10000 hours
Light Source Type	cfl
Light Source Wattage	13 watts
Light Type	CFL
Manufacturer	SunBlaster
Manufacturer Part Number	SL0900151
Manufacturer Warranty Description	One year.
Material Type	Glass
Model Name	SL0900151
Model Number	SL0900151
Number of Items	1
Package Quantity	1
Power Consumption	13 watts
Power Source	Corded Electric
Shape	Tubular(T)
Special Feature	Energy Efficient
Specific Uses For Product	Lamp
Style Name	13 Watt 4 Pack
UPC	628836091513 641773516673 689076735087
Unit Count	4 Count
Voltage	120 volts
Wattage	13 watts
White Brightness	900 lumens

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