# Light bulb SIGMA 15100 — bicycle spare part/accessory, black/red, 22 g, 1 pc

**URL:** https://aio.lv/en/product--sigma-15100--3940102
**Data updated:** 2026-03-13 15:49 (EET)
**Category:** Outdoor & Sports Accessories
**Manufacturer:** SIGMA
**Manufacturer code:** 15100
**EAN:** 4016224151004
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 38.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 32.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-15100--3940102

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Sigma Sport 15100 is a bicycle light bulb designed as a replacement spare part/accessory. It comes in black and red, weighs 22 g and is supplied as a single unit (1 pc). Intended for use with compatible bike lighting systems to restore illumination or replace a worn bulb, suitable for both men and women riders.

## Long description

Sigma Sport 15100 is a replacement rear bicycle light designed to restore illumination in compatible SIGMA lighting systems. The unit is supplied as a single piece in black and red, weighing 22 g. It integrates a rechargeable battery and a micro-USB charging interface, and is intended as a lightweight spare part or accessory for everyday cycling use where improved rear visibility and a brake-light style function are required.
Advantages
The SIGMA 15100 rear light combines a compact vertical design with low weight to fit discreetly on a wide range of seat posts. An integrated brightness sensor enables automatic activation in low-light conditions, while the brake-light function increases noticeability to following road users. Rechargeability via micro-USB provides convenient recharging from a PC or standard USB power source and allows full charging in approximately three hours. The unit is offered as a single spare part to replace worn bulbs or lost lights without the need for a full set upgrade.
Suitable for
Replacing a worn or lost rear light in compatible SIGMA bike lighting systems
Commuting and urban cycling where compact, rechargeable lighting is preferred
Day and night riding that benefits from an automatic brightness sensor and brake-light function
Key specifications
Color: black/red
Weight: 22 g
Unit count: 1 piece
Power source: integrated rechargeable battery
Charging method: micro-USB cable (approx. 3 hours to full charge)
Functions: brake-light mode, automatic activation via brightness sensor, day and night visibility
Design: slim vertical housing for improved lateral visibility
How to use
Mount the replacement unit onto a compatible SIGMA seat post bracket or holder according to the original product instructions. Charge the integrated battery fully before first use using the supplied micro-USB cable and a USB power source; a full charge takes about three hours. The light will activate automatically in low-light conditions thanks to its brightness sensor; use the built-in modes to select the brake-light function and steady or flashing operation as supported by the system.
Usage recommendations
For reliable operation, keep the micro-USB contact clean and dry, recharge the unit regularly when used frequently, and verify compatibility with your SIGMA mounting system before installation. Periodically check the light’s mounting stability and clean the lens to maintain maximum visibility.

## Specifications

| Feature | Value |
|---|---|
| Recommended gender | Man/Woman |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.022 kg |

### Packaging data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Battery

| Feature | Value |
|---|---|
| Type | Light bulb |

### Features

| Feature | Value |
|---|---|
| Product colour | Black, Red |

## FAQ

### How much does the Light bulb SIGMA 15100 cost, and is it available for purchase?

The price is 38.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SIGMA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SIGMA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Light bulb SIGMA 15100?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3940102/64236562_large.webp