How long will it run on a set of batteries? Curious since I'm planning a cross country trip.

No set time. One reason is that cold weather adversely effects battery strength. On cold mornings you can put them in a pocket close to your body and they will 'rejuvenate their strength. Additionally, run time fluctuates depending on the setting as the random setting uses more battery power. Take plenty of 'name brand' batteries on you trip and if in cold weather put them in you sleeping bag close to your body heat while you sleep.

What is the distance difference between the 2 nuts?

I just measured 2" center to center of the screws.It is a little hard to measure exactly because it is on my bike and difficult to get the ruler in.Hope this helps.The light is okay, not as bright as I would like, but fine for night use.

Will this work on a rear trunk rack for an Electra Townie?

Yes if your rack has a back monting plate with bolt hole.

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TL-L505 Tail Light | bike-taillights

Product ID: 10885496

Details

Color
Red
Brand
Sunlite
Material
Plastic
Power Source
Battery
Water Resistance Level
Water
Item Weight
0.18 Pounds

⚡4 lighting modes for versatile signaling

💧IPX5 water resistance for all-weather use

🔴5 bright LEDs for max visibility

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔴 Light up your ride, own the road.

BE SEEN BE SAFE - 5 high-intensity LEDs with built-in reflector amplify your visibility to motorists and cyclists alike.
FITS LIKE A GLOVE - Universal rack mount design bolts on easily, freeing your seatpost and ensuring a sleek setup.
RIDE RAIN OR SHINE - IPX5 water resistance means your tail light stays bright and reliable, no matter the forecast.
CUSTOMIZE YOUR GLOW - Choose from 3 flashing modes plus a steady light to match your ride’s vibe and weather conditions.
READY OUT OF THE BOX - Includes 2 AAA batteries so you can light up your ride immediately—no extra purchases needed.

The Sunlite TL-L505 Tail Light is a compact, rack-mounted safety light featuring 5 bright LEDs and a built-in reflector for enhanced visibility. It offers 4 lighting modes—including 3 flashing and 1 steady—to adapt to different riding conditions. Designed for universal fit on most rear racks, it includes batteries for immediate use and boasts IPX5 water resistance, ensuring dependable performance rain or shine.

Specifications

ASIN	B00B136INS
Auto Part Position	Rear
Best Sellers Rank	#227,388 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #252 in Bike Taillights
Brand	Sunlite
Brand Name	Sunlite
Color	Red
Customer Reviews	4.4 out of 5 stars 899 Reviews
Included Components	Taillight
International Protection Rating	IPX5
Item Dimensions L x W x H	9"L x 5.5"W x 1"H
Item Height	1.25 inches
Item Weight	0.18 Pounds
Manufacturer	SUNLITE
Material	Plastic
Material Type	Plastic
Mounting Type	Rear Seat Mount
Number of settings	4
Power Source	Battery Powered
UPC	072774982844
Warranty Description	Limited Warranty
Water Resistance Level	Water Resistant

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