We may earn a small commission on purchases made through our links.

Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.

x
Sorry, Something went wrong!
Lighthouse LEDs

5mm Round Top Red Fast Flashing 2Hz LED (Pack of 20)

✅ In stock
F
Grade
💤 Not a Deal
4/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$10.84
Listed $13.89
Save $3.05 22% OFF
Analysis Confidence 100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 20, 2026 7:26 AM · Prices & availability subject to change

Is This a Good Price on Amazon?

💤 Not a Deal
  • 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
  • 💰At 22% above its usual rate, this is currently priced higher than what most shoppers have paid.
  • 🏷️The listed retail price is trimmed by 11% at checkout.
  • 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 0/28
Recent Value 0/22
Market Standing 0/20
Deal Strength 0/20
Momentum 4/10

📝 Product Overview

🏪 Sold by Lighthouse LEDs

Product Details

Self-flashing LED with integrated flash circuit - 20 Red self-flashing LEDs with built-in flash circuit that pulse on a fixed cadence — suitable for model railroad signals, security indicators, prop electronics, and panel displays with integrated timing
Fast flashing at 2Hz with 8,000-10,000 mcd output - Built-in flashing IC drives the LED at 2Hz (two flashes per second) for attention-getting signal patterns. Red emission at 620-630nm wavelength through a clear lens, 1.9-2.1V forward voltage at 20mA drive current, 20-30 degree viewing angle for focused directional output.
Standard 5mm radial through-hole package - Two-lead DIP form factor fits standard 2.54mm pitch breadboards, perfboard, and PCB layouts. Integrated flash circuit is sealed inside the epoxy lens body, so the part installs and solders identically to a non-flashing 5mm LED with no extra components on the board.
Polarity and resistor reference - Through-hole LEDs are polarity-sensitive: longer lead is anode (+), shorter lead is cathode (−). For 20mA drive current with a 1.8-2.2V LED, use a series resistor of 150Ω 1/4W on 5V, 360Ω 1/4W on 9V, 510Ω 1/4W on 12V, or 680Ω 1/2W on 15V.
Hobby and prop applications - Suited to emergency vehicle simulation (police, fire, ambulance scale models), brake-light and stop-signal strobe effects, model railroad warning signals at crossings and rear markers, halloween prop eye glow, theatrical fire and alarm effects, and security indicator panels.

⚙️ Specifications

‎Lighthouse LEDs
‎B017TR6G68
‎5MMROUNDTOPFLASHINGLEDRED2HZ
‎November 10, 2015
Manufacturer
Lighthouse LEDs
ASIN
B017TR6G68
Item model number
AZ-5MMROUNDTOPFLASHINGLEDRED2HZ
Date First Available
November 10, 2015
‎AZ-5MMROUNDTOPFLASHINGLEDRED2HZ
‎November 10, 2015
‎9 x 6 x 1 inches
‎4 ounces
Package Dimensions
9 x 6 x 1 inches
Item Weight
4 ounces
Sold By
Lighthouse LEDs
F
$10.84
Check Deal →