are these polarized or non-polarized?

All electrolytic capacitors are polarized indicated by a "+" symbol or band. This must be observed when replacing an existing electrolytic. I surmise from your question that you should do some research on line. There are many informative sites. Even Wickipedia.

What do the numbers mean (e.g., 4x7 and 5x11)?

It indicates the physical size of tha capacitor, diameter and height.

Generally speaking, electrolytics of this size are rarely certified as “low ESR. Usually they have higher voltage ratings and higher capacitance values. That said, I would say “no.”

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Swpeet 240Pcs 24 Kinds Different Electrolytic Capacitors Range 0.1uF－1000uF Assortment Kit, 10V/16V/25V/50V Aluminum Radial Electrolytic Capacitors for TV, LCD Monitor, Radio, Stereo, Game

Swpeet 240Pcs 24 Kinds Different Electrolytic Capacitors Range 0.1uF－1000uF Assortment Kit, 10V/16V/25V/50V Aluminum Radial Electrolytic Capacitors for TV, LCD Monitor, Radio, Stereo, Game

Product ID: 100867510

Details

Brand
Swpeet
Capacitance
0.1 microfarad
Material
Aluminum
Maximum Storage Temperature
105 °C
Shape
Cylindrical

⚡240 pcs versatile kit

🔋Voltage up to 50V

🌡️Wide -40℃ to +105℃ range

3794 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your projects with precision and style!

BUILT TO ENDURE - Robust aluminum design with a -40℃ to +105℃ operating range ensures reliability under pressure
COMPACT REUSABLE - Handy, reusable box keeps your components secure and ready for your next innovation sprint
DI YERS DREAM KIT - Perfect for repairs, prototyping, and upgrades across TVs, radios, game consoles, and more
ALL IN ONE POWERHOUSE - 240 capacitors spanning 0.1uF to 1000uF for every project need
PRECISION AT A GLANCE - Clearly marked values and organized compartments eliminate guesswork and speed up your workflow

The Swpeet 240Pcs Electrolytic Capacitor Kit offers a comprehensive range of 24 capacitor types from 0.1uF to 1000uF, rated up to 50V, housed in a durable aluminum casing. Designed for professionals and hobbyists alike, it features a wide operating temperature (-40℃ to +105℃), clear labeling, and a reusable organizer box, making it an essential toolkit for electronics repair, prototyping, and modification.

Specifications

ASIN	B07KC99W2K
Best Sellers Rank	#69,141 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #506 in Industrial Electrical Capacitors
Brand Name	Swpeet
Capacitance	0.1 microfarad
Capacitance Tolerance	20
Customer Reviews	4.6 4.6 out of 5 stars (1,733)
Item Shape	Cylindrical
Manufacturer	Swpeet
Material Type	Aluminum
Maximum Storage Temperature	105 °C
Maximum Voltage	50 volts
Mounting Type	Through-Hole Mount
Operating Voltage	50 volts
Part Number	S309-Capacitor-240
UPC	754914370178
Upper Temperature Rating	105 °C

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