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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(100 Pcs) MCIGICM 5mm LED Light Diodes, LED Circuit Assorted Kit for Science Project Experiment (Multi-Colored - 5 Color)

(100 Pcs) MCIGICM 5mm LED Light Diodes, LED Circuit Assorted Kit for Science Project Experiment (Multi-Colored - 5 Color)

Product ID: 129756277

Details

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

⚡Low forward voltage (2V-3.2V)

💡100 pcs multi-color LEDs

🔧5mm standard round head

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Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💡 Light up your innovation — don’t let your projects stay in the dark!

STEM READY KIT - 100-piece assortment designed to fuel creativity and hands-on learning
VERSATILE APPLICATION - Ideal for electronics, car décor, signal indicators, and innovative experiments
PLUG PLAY SIMPLICITY - Standard 5mm round LEDs fit perfectly in DIY circuits and school projects
VIBRANT 5 COLOR SPECTRUM - White, Red, Green, Blue & Yellow LEDs to bring your projects to life
ENERGY EFFICIENT BRIGHTNESS - Operate at a low max current of 20mA for long-lasting glow

The MCIGICM 100-piece 5mm LED kit offers a vibrant assortment of five colors (White, Red, Green, Blue, Yellow) with low forward voltage requirements (2V-3.2V) and a max current of 20mA. Perfectly sized for easy integration into DIY electronics, STEM education, and creative projects, this reliable and energy-efficient kit empowers professionals and hobbyists alike to illuminate ideas with ease.

Specifications

ASIN	B07PG84V17
Best Sellers Rank	#24,180 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in LED Lamps
Brand Name	MCIGICM
Customer Reviews	4.5 4.5 out of 5 stars (1,753)
Educational Objective	STEM
Is Assembly Required	No
Item Weight	0.03 Kilograms
Manufacturer	MCIGICM
Material Type	copper
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	100.00 Count

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