Quick Summary
The DERNORD 100W Mercury Vapour Tortoise Bulb is an E27 screw lamp for vivarium use. It is described as a self-ballasted reptile mercury vapour bulb with UVA, UVB, visible light and heat in one bulb.
The product is intended for vertical mounting in a straight-down fixture, and the text also refers to a thermal reset feature that shuts off and can be restarted after cooling for 15 to 20 minutes.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | DERNORD. |
| Product type | Mercury vapour bulb for vivarium use. |
| Power | 100W, which is a key check for fixture and setup compatibility. |
| Base | E27 screw fitting. |
| Light output | UVA, UVB, visible light and heat are all described as part of the bulb. |
| Mounting | Vertical fixture only, with the bulb pointing straight down. |
| Reset feature | Thermal reset is described, with a cooling period of 15 to 20 minutes before restart. |
What to Compare Before Buying
- Fixture fit: Check that your lamp holder takes an E27 screw bulb and has enough space for the bulb size.
- Wattage: This is a 100W bulb, so the fixture and installation need to suit that rating.
- Mounting position: The bulb is intended for vertical use, so compare your fixture layout before choosing it.
- Use case: It is described for reptile and vivarium use, so compare it with the needs of your enclosure.
- Cooling behaviour: If the thermal reset feature matters to you, be ready to allow cooling before restarting after shut-off.
Before You Decide
Confirm that your fitting is E27 and that your fixture can take a 100W bulb mounted vertically. Check the bulb size against the enclosure or lamp housing before ordering. If the thermal reset behaviour is important to your setup, follow the stated cooling and restart timing.
