====== Lightbulbs ======

===== Questions covered in this article =====

  * [[#the_lights_in_my_bathroom_or_room_are_blinking_switching_off_or_not_turning_on_why|The lights in my bathroom/room are blinking, switching off, or not switching on – why?]]
  * [[#what_kind_of_lightbulb_do_i_need|What kind of lightbulb do I need?]]
  * [[#which_color_temperature_should_i_use|What colors should I use for each room?]]
  * [[#where_can_i_buy_them|Where can I buy them?]]
  * [[#how_can_i_replace_the_lightbulbs|How did I replace the lightbulbs?]]


=== The lights in my bathroom or room are blinking, switching off, or not turning on. Why? ===
One or both of the lightbulbs probably need to be replaced.  
Sometimes changing just one is enough – you can check by looking for **black stains** on the bulbs.  
To be safe, it’s best to replace **both bulbs** at the same time.

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=== What kind of lightbulb do I need? ===
Use **Philips Master PL-C 18W 4P**.  
There are different color variants (e.g. **827** or **840**), but the important part is that it has **4 pins (4P)**.

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=== Which color temperature should I use? ===
  * **Room/Kitchen:** 2700K – warm white (incandescent tone)
  * **Bathroom:** 4000K – cool white

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=== Where can I buy them? ===
You can find them on **Amazon** or in hardware stores such as **OBI**.

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=== How can I replace the lightbulbs? ===
You can ask **Lapic** to replace them (he usually charges around **50 €**),  
or you can do it yourself — it’s quite simple:

  - **Switch off** the lights.
  - Make sure you’re standing **securely** and can reach the fixture safely.
  - **Remove the white cover** by pulling it down gently while twisting it a bit.  
    It may make some metal sounds – that’s normal.
  - Hold the **connector** with one hand and the **base of the bulb** with the other.  
    Pull the bulb **horizontally** out of the socket (it may require some force).
  - Find the **notch** on the connector and align it with the one on the new bulb.
  - **Push** the new bulb in until it clicks into place.
  - **Reattach the white cover.**  
    This part can be a bit tricky – push the metal clips gently until everything fits snugly.

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**Tip:** If you replace both bulbs at once, you’ll have even light and won’t need to do it again soon.