Is the input ok for 12v? The pictures say 6-9v, the description says 6-12v?

I recently ordered some of these so I just checked. The board itself says "DC in, 7-12 volts". Please keep in mind that some fully charged 12 volt batteries can produce a voltage of 13+ volts. I've not tested so I cannot say for sure. If you are regulated @ 12 volts you should be fine.

Are these good for testing guitar pedal circuits?

These are good for any low current application where the requirements are 3.3V - 5V input. These allow a 9V battery to be used to supply the proper input power to your circuit. Hopefully this helps.

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3.3V 5V MB102 Solderless Breadboard Power Supply Module with 9V Battery Clip Power Cable 2.1x 5.5mm Male DC Jack Plug for Arduino (Pack of 3)

Product ID: 403958482

Details

Brand
ALAMSCN
Model name
AL12413
Connectivity technology
USB
Included components
3 x 5 V 3.3 V
CPU manufacturer
ARM

⚡Max 700mA current

🔋Dual 3.3V & 5V output

🔌6.5-12V input range

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Rp543553

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your innovation with precision and ease!

COMPLETE POWER KIT - Includes 3 modules plus 9V battery snap cables for versatile, on-the-go prototyping.
SAFE RELIABLE CURRENT - Supports up to 700mA output, balancing power and protection for your delicate circuits.
DUAL VOLTAGE FLEXIBILITY - Switch effortlessly between 3.3V and 5V rails to power diverse Arduino and DIY projects.
POWER STATUS AT A GLANCE - Integrated green LED and ON/OFF switch keep you in control and informed.
PLUG PLAY BREADBOARD POWER - Instantly energize your MB102 with a simple snap-in module—no soldering required.

This ALAMSCN MB102 breadboard power supply module pack of 3 delivers regulated 3.3V and 5V outputs with a max current of 700mA, powered via 6.5-12V DC input or 9V battery snap cable. Designed for quick plug-in use on MB102 breadboards, it features an ON/OFF switch, power indicator LED, and dual voltage rails for flexible prototyping with Arduino and electronics projects.

Specifications

Brand	ALAMSCN
Product Dimensions	1 x 1 x 1 cm; 20 g
Item model number	AL12413
Manufacturer	ALAMSCN
Color	Black
Processor Brand	ARM
Processor Count	1
Memory Technology	DDR4
Are Batteries Included	No
Item Weight	20 g

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