LEDík: an AI advisor that matches power supplies to strips

LED Solution, based in Liberec, Czechia, sells LED strips, power supplies, aluminium profiles and dimmers in its online store eshop.ledsolution.cz, which runs on Shoptet. Since 27 February 2026 its customers have been advised by LEDík, an AI chatbot for Shoptet by Chaterimo: it knows the parameters of the whole catalogue and checks that the parts fit together. In the 30 days from 11 October to 9 November 2026 it held 138 conversations, and 135 of them (98%) needed no hand-over to the team.

The starting point

LED Solution's customers rarely ask about their parcel. They want to know whether the parts will work together. Three real questions from the chat, translated from Czech, lightly edited and without product codes:

• “Which transformer is best for 6 metres of this strip? LED strip 9.6 W/m, 24 V.”
• “For a 230 V 10 W/m LED strip I need you to specify a dimmer and a remote control.”
• “Can this diffuser be clipped into this profile? I don't want to close it with the one-metre ones, the joins would show.”

Every answer means combining several parameters at once: voltage, power per metre, length, IP rating (protection against dust and water), dimming method and profile dimensions. And the catalogue has 4,651 products and 6,372 items including variants (as of 10 November 2026).

We work with a technical product range, where some relations are obvious to an expert but are not always stated explicitly in the product description.

Questions were answered by a person who had other work too and could not keep up with simple, repeated questions. So LED Solution looked for an advisor that recommends two or three specific products with a link on its own and passes custom projects to colleagues.

The solution

LEDík runs in the online store as the Chaterimo add-on for Shoptet. It differs from an ordinary chatbot in the data it works with and what it can do with them.

• Data straight from Shoptet, not only from a product feed. LEDík reads the parameters of each variant as well as related and alternative products, as the store has set them up. So it knows not only that a strip runs on 24 V but also which power supplies and profiles the store offers for it. The catalogue is synchronised with Shoptet every night.
• A whole set from one question. The customer describes what they are building, for example lighting under kitchen cabinets. LEDík suggests the strip, profile and power supply, and a diffuser and dimmer when needed, and checks that the parts match in voltage and power.
• Products from the current catalogue. It shows recommended products as product cards with a picture, price and link. One click takes the customer to the product page.
• It knows which page the customer is on. A customer asking from a product page does not have to say which product they mean.
• When a person is needed, it passes the request on. For custom projects or complaints LEDík does not improvise: it refers the customer to colleagues and passes the inquiry on with the customer's contact details.

LEDík was not finished on day one. The LED Solution team tested it on real customer questions, and we adjusted the search and the handling of data based on their feedback:

The store's team can also ask, for every answer in the chat history, why LEDík answered the way it did. When an answer is off, the reason is visible at once, and the tuning follows real conversations. How this works is described in how to fine-tune your AI product advisor.

A real example

On Thursday 22 October 2026 at 19:41, when the shop was already closed, a customer wrote in the chat (translated from Czech):

Customer: “what voltage power supply is better for 2 m of strip LED strip 12W/m 12V waterproof IP67”

LEDík answered in one message. It started with the most important point (translated from Czech):

LEDík: “Hello, for this strip you need a 12V power supply, because the strip has an input voltage of DC 12 V. The 24V power supply whose page you are on right now would damage the strip.”

What LEDík did in the answer:

1. It checked the voltage. LEDík knows which page the customer is on. It saw that the customer had a 24 V power supply open and pointed out that a 12 V strip needs a 12 V power supply.
2. It calculated the power. 2 m × 12 W/m = 24 W; with a 30% reserve that makes 31.2 W. The nearest higher power supply on offer has 35 W.
3. It recommended a specific product. A 12 V / 35 W power supply rated IP67, which suits a waterproof strip. It showed the power supply and the chosen strip as product cards with price and availability.

At the end LEDík reminded the customer that a qualified electrician should connect the power supply to the 230 V mains. Within a minute of sending the question, the customer clicked the card of the recommended power supply.

Results

LEDík has been answering LED Solution's customers around the clock since 27 February 2026. The numbers come from Chaterimo statistics for the 30 days from 11 October to 9 November 2026, the period covered by the chat history. They count conversations in the chat window on the store's website and exclude test conversations.

A conversation without a hand-over to the team is one that ended without an inquiry or a ticket. The store's team took over three conversations together with the customer's contact details: two as an inquiry from the form in the chat and one as a ticket. Two more inquiries came from the form in the chat window outside these conversations.

41% of conversations (56 of 138) started outside LED Solution's opening hours (Monday to Friday, 8:00–17:00): 22 at the weekend and 34 on a working day before 8:00 or after 17:00. In 30% of conversations (41 of 138) the customer clicked a product card or a link in the answer. Product cards received 63 of the 74 clicks.

The table shows what customers wrote about. Most questions are about choosing and combining products; customers asked about orders and delivery in only 11 of 138 conversations.

We assigned topics by searching for words in customer messages (11 October – 9 November 2026), not by sorting them by hand. One conversation can belong to several topics, so the shares do not add up to 100%.

What comes next

In mid-October 2026, LED Solution also deployed Chaterimo on its Slovak online store, building on its experience with LEDík in the Czech online store.

LED Solution keeps tuning LEDík with us based on regular reviews of conversations. The review of 30 days in October 2026 led to further changes: LEDík is to handle variant parameters such as colour and length better and to search more precisely when a customer asks from a product page.

We are very happy with Chaterimo. Although we offer a fairly specialised technical product range, our AI advisor LEDík handles customer questions well and helps customers choose suitable products. We regularly review the conversation history and use what we learn to improve how it works. We also appreciate the excellent communication with the developers, who actively respond to our feedback and keep improving the service. Chaterimo has worked so well for us that we also deployed it on our Slovak online store in October 2026.

What an AI chatbot for an online store can do and where it stops is summarised in AI chatbot for e-commerce.

TopicsShoptetAI product advisor