> Lamps > Gas discharge lamps > CDM-TC, CMH-TC and HCI-TC

CDM-TC, CMH-TC and HCI-TC

At the end of durability (strong colour changes, difficult to start up
or on/off), replace the lamp on time to prevent defects to the ballast.

These lamps work in combination with a ballast, therefore it is not possible
to exchange different powers.

Prices are exclusive waste disposal fee.

Prices are exclusive of VAT.

Filters

Filter on:

? Either show items that are in stock or items that are not in stock.

? The life span of a party of lamps of which 50% of the lamps will continue to function. Sometimes, incandescent or halogen lamps may become defective more quickly, but in case 50% of the lamps do still reach the lifespan, the lamps are still OK.

? If the product is unbranded, we do not have a regular supplier for it. Therefore, the product version may slightly vary.

? Light colour is often represented with a 3 digit number. The first digit indicates the CRI (Colour Rendering Index) or CRI Ra value:
5 = 50-59
6 = 60-69
7 = 70-79
8 = 80-89
9 = 90-99
The last 2 digits are for colour temperature.
The higher the colour temperature, the cooler the impression of light.
Warm white creates a cosy, welcoming atmosphere. Neutral cool-white creates a more businesslike atmosphere.
Low lighting levels in interior must be obtained with warm-white light. If a very high level of light is needed, this must be achieved with neutral or cool white light.
2700K extra warm white
3000K warm white
3500K neutral white
4000K cool white
5000-5500K daylight
6000K cool daylight

? Light sources can be classified on the basis of their colour rendering properties. The unit for colour rendering is called CRI (Colour Rendering Index, or CRI Ra value). The scale of the Ra is from 50 to 100.
Ra = 90-100 excellent colour rendering properties
Ra = 80-90 good colour rendering properties
Ra = 60-80 moderate colour rendering properties
Ra <60 poor colour rendering properties
Fluorescent and PL lamps with an equal power, the luminous flux of Ra 90-100 tubes is typically 20% lower.

Colour temperature is expressed in kelvin (K). The higher the colour temperature, the cooler the impression of the light:

2700K: extra warm white
3000K: warm white
3500K: neutral white
4000K: cool white
5000-5500K: daylight
6000K: cool daylight

Extra warm white creates a warm, inviting atmosphere (e.g. hotel, living room, and catering). Warm white can be used for a pleasant atmosphere (e.g. retail and office). Neutral cool white creates a more businesslike atmosphere, this color gives a sterile atmosphere.
Low lighting levels are obtained in interior with warm white light. If a very high level of light is needed, neutral or cool white light is a good choice.

? Diameter in millimetres, measured at the widest point.

? Some lamps and ballasts are dimmable. There are different types of dimmers and different ways to dim a ballast or transformer. In case of insufficient knowledge, please check with our sales department.

? Number of hours with 10% of the lamps has been interrupted by application of an electronic (or HF) ballast.

? Glass colour.

? Product length in millimetres. For fluorescent tubes, this excludes the metal pins on the end unless otherwise stated.

? The amount of light transmitted by the light source per second. The unit of luminous flux is the lumen (lm).

? Many lamps have a UV filter against discolouration. This filter is often recognisable as a bluish glow over the lamp. If a lamp has a UV filter, this is indicated on its packaging and, in most cases, also on the lamp itself.