What are the resistances for each colour of the LEDs?

To calculate the resistor you need to use for an LED: take your supply voltage, subtract 1volt for the drop over the LED (actually 0.7-1.5 v typical) then divide that figure by .015 amps. (15mA is usually very bright). That figure is the resistor value. Lots of tolerance upwards from that value. (e.g if supply is 12 volts, to run an LED try 11/.015= 733 ohms or more (nearest available resistor value is 820 ohms)

Can you provide 24vdc to these LED's?

Yes but you need the original voltage and current for the LED -OR- a resistor box to bring the voltage up from 0 vdc to the full bright voltage level that is safe for the LED. With that and using Ohm's Law or E=IR you can figure out the value of the Dropping Resistor you will need for a 24 vdc supply.

I am using these to back light a clock. i hooked one of them up to a 9v battery. it fried it. will it stop the frying the bulb if i string 4 or 5?

Sounds like you want to string these in series. Add up each LED voltage rating for the color LED and if is equal to or greater than 9v you should be ok. EG: 2.2 + 3.2 + 2.2 + 3.2 + 2.2 = 10.8v should be ok.

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MCIGICM 5mm LED Light Diodes Kit, Multi-Colored - 5 Color, 100 Pcs

MCIGICM 5mm LED Light Diodes Kit, Multi-Colored - 5 Color, 100 Pcs

Product ID: 129756277

Details

Brand
MCIGICM
Material
copper
Shape
round
Special Feature
Not Dimmable
Unit Count
100.00 Count

⚡Low voltage, high efficiency

💡100 pcs for endless creativity

🔴5 vibrant colors

$19.34

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Description

💡 Light up your innovation with every color!

BULK 100 PIECE KIT - Enough LEDs to fuel multiple DIY projects, experiments, and creative builds without running out.
VERSATILE APPLICATION - Perfect for STEM education, car decorations, signal indicators, and electronic experiments.
VIBRANT 5 COLOR SPECTRUM - White, Red, Green, Blue & Yellow LEDs to make your projects pop with color.
ENERGY EFFICIENT OPERATION - Low forward voltage (2V-3.2V) and max 20mA current for safe, long-lasting illumination.
RELIABLE QUALITY AT A GREAT PRICE - Highly rated with 4.5 stars and trusted by thousands of makers and professionals alike.

The MCIGICM 5mm LED Light Diodes Kit offers 100 multi-colored LEDs (White, Red, Green, Blue, Yellow) designed for low voltage, energy-efficient operation. Ideal for STEM projects, DIY electronics, and creative lighting, this kit combines variety, quantity, and quality to empower makers and professionals to bring their ideas to life with vibrant illumination.

Specifications

ASIN	B07PG84V17
Best Sellers Rank	#11,155 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in LED Lamps
Brand Name	MCIGICM
Customer Reviews	4.5 4.5 out of 5 stars (1,761)
Educational Objective	STEM
Item Highlight	LED Circuit Assorted Kit for Science Project Experiment Car Decorations, Signal Indicator, Electronic Experiments
Item Weight	0.03 kg
Manufacturer	MCIGICM
Material Type	copper
Number of Items	100
Number of Packs	5
Set Name	MCIGICM 100 Pieces Clear LED Light Emitting Diodes LED Assorted Kit 5 Colors 5 mm
Size	5mm
Theme	Physics
UPC	727040387167
Unit Count	100 count

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$19.34

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TrustScore 4.5 | 7,300+ reviews

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