Will it work for a 5v power source?

Yes they will work with a 5volt DC power source. The LED's are rated for a maximum of 12volts with the attached resistors and minimum amount of voltage the LED's require to work also called (Forward Voltage) is only 3Volts so you're good. Hope it helps.

Do I need to add resistors if I'm hooking 10 of them up to a fixed 14 volt accessory output on my model train transformer?

The LED's already have resistors soldered onto the hot wire. That's why they are rated for 12V. But if you're going to hook them up to a 14V system you will definitely want to get some more resistors so you're not blowing lights often.

How many lumens does a single one of these LEDs put out?

i do not know but i assure you it will hurt your eyes if you look at them straight on for sure. At night, I can clearly see them reflecting on a wall 8 feet away and I only used 2.

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Honbay 50pcs Mixed Colour 5mm LEDs Pre Wired Light 12V 20cm Bulb

Honbay 50pcs Mixed Colour 5mm LEDs Pre Wired Light 12V 20cm Bulb

Product ID: 25394611

Details

Brand
Honbay
Bulb Base
Flanged
Light Type
LED
Special Feature
color
Specific Uses For Product
Decoration

🌈5 vibrant colors

💡5mm high-brightness LEDs

🔌12V pre-wired convenience

€ 18.69

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Description

⚡ Light up your world with pro-grade brilliance and effortless style!

DURABLE FLEXIBLE - Premium PVC cables and shrink-wrapped connections ensure long-lasting, tangle-free performance.
PRECISION BEAM FOCUS - 35° directional lens delivers sharp, spotlight-style illumination for professional-grade effects.
PLUG PLAY SIMPLICITY - Pre-wired 20cm leads with built-in resistors eliminate guesswork and speed up your setup.
VIBRANT SPECTRUM POWER - 50 LEDs in 5 vivid colors to electrify your projects with unmatched brilliance.
VERSATILE CREATIVE FUEL - Perfect for automotive, DIY, industrial, and artistic lighting—stand out in every space.

The Honbay 50pcs Mixed Colour 5mm LEDs set features 12V pre-wired, high-brightness LEDs in five vivid colors with 20cm flexible leads and built-in resistors. Designed for precision lighting with a 35° beam angle, these durable, easy-to-install LEDs are ideal for automotive, industrial, and creative DIY projects, delivering vibrant, directional illumination that outshines standard bulbs.

Specifications

ASIN	B01ANHHQ1A
Additional Features	color
Beam Angle	35 degrees
Best Sellers Rank	#383,003 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12,788 in LED Bulbs
Brand Name	Honbay
Bulb Base	Flanged
Color	Blue
Color Rendering Index	50
Control Method	App
Controller Type	Push Button
Customer Reviews	4.6 4.6 out of 5 stars (580)
Indoor Outdoor Usage	Indoor
Item Dimensions W x H	3.94"W x 7.87"H
Item Weight	0.01 kg
Light Color	Red, White
Light Source Type	LED
Light Source Wattage	0.5 watts
Light Type	LED
Manufacturer	Honbay
Manufacturer Part Number	LED-001
Material Type	copper
Model Number	H&PC-58567
Number of Items	1
Package Quantity	1
Power Consumption	0.5 watts
Shape	Multifaceted Reflector(MR)
Specific Uses For Product	Decoration
Unit Count	50 Count
Voltage	12 volts

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€ 18.69

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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