built-in light seatpost S311
seatpost S311shop
S311 (Battery)
| Seatpost test standard | ISO 4210 mountain or ISO City |
| LED-unit | There are 2 modes to choose from: – 5 LED mode (all 5 LEDs light up) – 3 LED mode / energy saving mode (only the top 3 LEDs light up) |
| Function | The second top LED functions as a button and is used to operate the real light. Light modes: Off → 5 LEDs → 3 LEDs → Long press to witch off |
| Power source | Lithium polymer battery 3.7V, 800mAh type: 801473, with integrated overcharge protection |
| Light duration (fully charged battery) |
5 LED: 10 hours 3 LED: 15 hours |
| Charging | Micro-USB 2.0 port integrated in the seat rail clamp with a transparent silicone cover for splash-water protection. Charging voltage: 5 V Charging current: 0.5 A – 2.0 A |
| Charging time | 2.5 hours |
| Charge state | Indicated by a blue LED integrated into the micro-USB port. As soon as this LED lights up, the battery still has enough capacity to power the LEDs for 1 more hour in accordance with the regulation. The micro-USB port is covered with a transparent silicone cap so that the blue LED is visible. |
| Package contents | Rear light seatpost, USB charge cable (200cm) |
| Approval code | K1595 |
S311D (Dynamo)
| Seatpost test standard | ISO 4210 mountain or ISO City |
| Function | Lights up when AC power is supplied |
| Power source | Dynamo AC |
| Power consumption | 0.5W |
| Nominal voltage | AC 6V (3W) |
| Package Contents | Rear light Seapost, extension cable (200mm) |
S311E (E-bike)
| Seatpost test standard | EN 15194 or ISO 4210 mountain |
| Function |
The Rear light is operated by the light switch of the e-bike system. |
| Power source | On-board battery of the e-bike. The Seatpost can be operated with on-board voltages (direct current – DC) from 6 V to a maximum of 12V. The electrical connection is made with different cables and connectors in compliance with the relevant regulations. |
| Power consumption | 0.3W |
| Nominal voltage | DC 6V (6 V – 12V) |
| Package Contents | Rear light seatpost |
ASSEMBLY
Use the correct diameter corresponding to your bicycle frame. Use the appropriate tool to fasten the saddle support. The minimum insertion length into the frame is 100mm. The rear light must be aligned so that it shines backward. The connector of built-in light seatpost and the connector of power source should be compatible, which must be ascertained before the purchase of the product.
Version
StVZO version : S311 (battery), S311E(e-bike), S311D (dynamo)
International version : S331(battery), S341(battery), S341E(e-bike)
Special seatpost design of S311
Patented seatpost with an integrated
seat rail clamp. The seatpost tube
features 5 holes in which the LEDs are
enclosed.
S311’s USB 2.0 charging port is in the
lower section of the seat rail clamp.
The port is accessible from the outside
and can be closed using a transparent
silicone cover.
S311E or S311D’s cable with a connector
extends out of the lower end of the
seatpost tube for connection to the
electrical system of the e-bike or th
bicycle dynamo.
Features
| Diameter (see drawing) | 25.4㎜ / 27.2㎜ / 30.9㎜ / 31.6㎜ |
| Widths (see drawing) | 350㎜ / 400㎜ (D30.9mm / D31.6mm) |
| Color and surface finish | polished Silver / anodized Black |
| Material | Aluminum 6061 T6 |
LED unit
5 LEDs with integrated electrical light control and battery management system. The two upper LEDs are protruding, also ensuring the lateral emission of light. The lower 3 LEDs are sunk into the seat post tube. The LEDs, circuit board and battery are enclosed in a plastic housing and are thus protected. (dust and splash proof in accordance with IPX5).
| Operating temperature | Min.: -15°C, Max.: 45°C Optimum storage temperature: 20-25° C |
| Compliant with standard or directive | RoHS, UN3481, StVZO §22a TA 14b (Bicycle rear light), IPX5 |
Assembly
| Angle limits (frame seat tube) according to the StVZO | Min: 70.0° Max: 76.0° |
Integrated lights
Lights are in frame. Light skin’s special design brightens the way ahead.
Turn them on and off with a simple tap. Be seen by others on the road, ever aware of your surroundings.
Bikes with LightSKIN
Rearlight for bicycles integrated in the seatposts
This bicycle seatpost with integrated rear light
ensures the visibility and safety on the road with its glare-free LEDs.
Safety instructions
At startup, the product must be dry. Remove any moisture before riding. After installation, test that the seatpost does not drop under load. Take care that the LEDs are not covered by a bag or clothing when riding. Do not make any independent changes to the product. Do not try to open the product.
Compared to existing bike lights that are attached externally, LightSKIN has numerous advantages.
There is no extrusion, so there is less risk of breakage and less possibility of theft. It guarantee superior performance and the resistance to amage by water is excellent because of adoption of the LED circuit self-invented in South Korea and a unique patent internal structure.
A simple design harmonizes with the overall design of the bicycle, enabling customers to ultimately achieve a modernized aesthetic.
Lightskin built-in light products with simple design and function won the 2010 red-dot design award, the 2020 red-dot design award, and the 2020 Taipei d&i award.
Mechanical stopper
As for S311, S311E, and S311D, a ring-type mechanical stopper is provided between the third LED and the fourth LED in order to protect protruded LED and ensure the minimum brightness meeting the StVZO standard. (only applicable to StVZO model).