smart day/night function does not seem to work. How can I enable this mode?

I have found that light automatically switches between smart day or night. I own both the seemee 200 and 300 and I ride early morning before sunrise until after sunrise. When I select the brake mode by long pressing the power button until the light illuminates solid and then I select the mode I want; the light will automatically turn off the optitracing light after sunrise and be in day mode. The optitracing light only illuminates in night mode.

Can the mount fit my aero seatpost?

Yes sir. Also a seat mount is available if you have a bontrager seat or a new specialized. They have screw holes underneath for the special $10 mount

Will this attach to a road bicycle race Helmet? Pulsing effect looks great to help drivers accurately judge position of cyclist

The SEEMEE 300 is not designed to be attached directly to a road bicycle race helmet. It is primarily meant to be used on all standard saddles or seat posts.

Magicshine, I know you have an updated Allty 1500S coming out next month, is there any upgraded taillights (SeeMee) being released soon as well?

The SEEMEE 300 is now our newest taillight!

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

SEEMEE 300/400 Bike Taillight,300/400 Lumen Bike Tail Light,360° Visible Smart Brake Sensor IPX6 Waterproof Rear Bike Light for Night Riding

Product ID: 536258956

Details

Auto Part Position
Rear
Brand
Magicshine
Color
SEEMEE 300
Item Weight
0.12 Kilograms
Material
Aluminum
Mounting Type
Seat Mount

💡300/400 lumens max brightness

🔋1600mAh battery, 200h runtime ECO mode

🌧️IPX6 waterproof, rainproof durability

$111.26

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered 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 British Virgin Islands.

Secure transaction

Description

🚴‍♂️ Light up your ride, own the night!

RAPID USB C RECHARGE - Full charge in just 2 hours keeps you riding longer with minimal downtime.
SMART BRAKE SENSOR TECH - Automatically signals braking to alert traffic behind you—safety that reacts in real time.
UNMATCHED 360 VISIBILITY - Stay seen from every angle with superior 260° side visibility plus a unique downward LED for road awareness.
ADAPTIVE BRIGHTNESS CONTROL - Ambient light sensor adjusts brightness seamlessly for day or night rides, maximizing battery life.
RUGGED LIGHTWEIGHT DESIGN - Premium one-piece aluminum housing combines durability with sleek style for the modern commuter.

The MagicShine SEEMEE 300/400 is a high-performance rear bike taillight delivering up to 400 lumens with 360° visibility. Featuring smart brake and ambient light sensors, it automatically adapts to riding conditions for enhanced safety. Its IPX6 waterproof aluminum body ensures durability in all weather, while a powerful 1600mAh battery offers up to 200 hours runtime in eco mode. USB-C fast charging and a 24-month warranty make it the ultimate smart light for night and day cycling.

Specifications

ASIN	B0C58TNZDD
Auto Part Position	Rear
Best Sellers Rank	#10,916 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #10 in Bike Taillights
Brand	Magicshine
Brand Name	Magicshine
Color	SEEMEE 300
Customer Reviews	4.4 out of 5 stars 775 Reviews
Included Components	SEEMEE 300 Taillight
International Protection Rating	IPX6
Item Dimensions L x W x H	1.37"L x 1.25"W x 2.51"H
Item Type Name	300 lumens Smart Bike Rear Lights
Item Weight	0.12 kg
Light Output Maximum	300 lumens
Manufacturer	MagicShine
Manufacturer Part Number	SEEMEE 300
Material	Aluminum
Material Type	Aluminum
Model Number	SEEMEE 300
Mounting Type	Seat Mount
Number of Items	1
Number of settings	5
Power Source	Battery Powered
Warranty Description	24 months
Water Resistance Level	Waterproof

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

$111.26

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered 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 British Virgin Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews