1. Introduzione
This manual provides instructions for the OHLUX ST38 Solar Replacement Bulbs. These bulbs are designed for low-voltage solar string light systems (3V DC) and feature a durable, shatterproof, and waterproof construction. They emit an ultra-warm 2200K light, ideal for creating a cozy outdoor ambiance. Please read this manual thoroughly before installation and use to ensure proper function and longevity of your bulbs.
2. Informazioni importanti sulla sicurezza
Per evitare danni al prodotto o lesioni personali, osservare le seguenti precauzioni di sicurezza:
- Voltage Compatibilità: These bulbs are designed exclusively for 3 V CC a basso volumetage solar systems. Do not attempt to use them with standard household AC voltage (e.g., 120V or 240V) or any other voltage system. Using incorrect voltage will damage the bulbs and may pose a fire hazard.
- Installazione: Ensure the power to the solar string light system is OFF before installing or replacing bulbs.
- Gestione: Although shatterproof, handle bulbs with care to avoid damage to the internal LED filament.
- Resistenza all'acqua: The bulbs are IP65 water-resistant, suitable for outdoor use. However, avoid submerging them in water.
- Disposizione: Smaltire le lampadine vecchie o danneggiate secondo le normative locali sui rifiuti elettronici.
3. Contenuto della confezione
Verifica che tutti i componenti siano presenti nel tuo pacchetto:
- OHLUX ST38 Solar Replacement Bulbs (4-Pack)

Image: Four OHLUX ST38 solar replacement bulbs, showing their design and packaging.
4. Specifiche del prodotto
| Caratteristica | Specificazione |
|---|---|
| Marca | OHLUX |
| Nome del modello | QP6012SA |
| Tipo di luce | GUIDATO |
| Forma della lampadina Dimensioni | C7 (ST38) |
| Base della lampadina | E12 |
| Voltage | 3 Volt CC |
| Consumo energetico | 0.2 Watt |
| Colore chiaro | Bianco caldo |
| Temperatura del colore | 2200 gradi Celsius |
| Indice di resa cromatica (CRI) | 85 |
| Uso interno/esterno | All'aperto |
| Fonte di alimentazione | Solar Powered (Low Voltage) |
| Tipo di materiale | Plastica |
| Caratteristiche speciali | Energy Efficient, Shatterproof, IP65 Water-Resistant, Dimmable (10%-100%) |

Image: OHLUX ST38 bulb highlighting 3V compatibility and E12 base.
5. Configurazione e installazione
These bulbs are designed for quick and easy replacement in compatible solar string light systems.
- Verifica compatibilità: Ensure your existing solar string light system operates on 3V CC e usi Lampadine con attacco E12. These bulbs are not compatible with standard AC plug-in string lights.
- Spegni: Before beginning, ensure the solar string light system is completely powered off. If it has a manual switch, turn it to the "OFF" position.
- Rimuovere la vecchia lampadina: Svitare con cautela la vecchia lampadina dal suo portalampada.
- Installare una nuova lampadina: Gently screw the OHLUX ST38 replacement bulb into the empty E12 socket until it is snug. Do not overtighten.
- Test: Once all desired bulbs are replaced, turn the solar string light system back on to test functionality.

Image: OHLUX ST38 bulbs installed in an outdoor solar string light setup.
6. Funzionamento
These replacement bulbs operate in conjunction with your existing solar string light system. Their functionality is dependent on the solar panel and control unit of your string lights.
- Funzionamento automatico: Typically, solar string lights automatically turn on at dusk and off at dawn, provided the solar panel receives sufficient sunlight during the day to charge its battery.
- Caratteristica dimmerabile: These bulbs are designed to be dimmable from 10% to 100%. If your solar string light system includes a dimming function, these bulbs will respond accordingly. Refer to your solar string light system's manual for dimming instructions.
- Bagliore bianco caldo: The 2200K ultra-warm white light provides a soft, inviting ambiance.

Image: OHLUX ST38 bulbs showcasing their 2200K ultra-warm glow.

Image: OHLUX ST38 bulbs demonstrating dimmable capability.
7. Cura e manutenzione
Proper care ensures the longevity and optimal performance of your OHLUX ST38 bulbs.
- Pulizia: Wipe the bulbs periodically with a soft, damp panno per rimuovere polvere e sporco. Non utilizzare prodotti chimici aggressivi o detergenti abrasivi.
- Ispezione: Regularly inspect the bulbs and sockets for any signs of wear or damage. Replace any damaged bulbs promptly.
- Magazzinaggio: If storing the string lights for an extended period, ensure the bulbs are clean and dry. Store them in a cool, dry place away from direct sunlight.

Image: OHLUX ST38 bulbs demonstrating IP65 waterproof and shatterproof features in various weather conditions.
8. Risoluzione Dei Problemi
If you encounter issues with your OHLUX ST38 bulbs, refer to the following common problems and solutions:
| Problema | Possibile causa | Soluzione |
|---|---|---|
| La lampadina non si accende. | 1. Lampadina non avvitata correttamente. 2. Vol. erratotage fornitura. 3. Solar panel not charging. 4. Lampadina difettosa. | 1. Ensure the bulb is securely tightened in the socket. 2. Confirm your string light system is 3V DC. Do not use with AC power. 3. Check the solar panel for obstructions and ensure it receives direct sunlight. 4. Replace with a new OHLUX ST38 bulb. |
| La lampadina sfarfalla. | 1. Connessione allentata. 2. Low battery charge in solar system. | 1. Tighten the bulb in its socket. 2. Allow the solar panel to charge fully in direct sunlight. |
| Le luci si spengono troppo velocemente. | Carica insufficiente del pannello solare. | Ensure the solar panel is clean and positioned to receive maximum direct sunlight throughout the day. |
9. Garanzia e supporto
OHLUX provides a Garanzia di 1 anno for these ST38 bulbs from the date of purchase. This warranty covers manufacturing defects under normal use.
La garanzia non copre i danni causati da:
- Improper installation or use with incompatible voltage sistemi.
- Incidenti, abusi, negligenza o calamità naturali.
- Riparazioni o modifiche non autorizzate.
For warranty claims or technical support, please contact OHLUX customer service through the retailer where the product was purchased or visit the official OHLUX websito per le informazioni di contatto.
Produttore: OHLUX
Numero modello: QP6012SA