I-Giant’s versatile T5 technology design is perfect for new installations or can simply replace existing standard footprint T8 batten luminaires. Manufactured in accordance with BS EN 60598, utilising high quality control gear and components, together with quality branded T5 lamps.

The ECO-SPLIT is an energy efficient intelligent T5 light fitting in a high Impact Vapour Proof case. The high frequency movement sensor soft switches 80% of the light on or off in each fitting while 20% of the light output remains constant.

This unique & simple soft switching concept (Patent Pending) means that the fluorescent tubes are switched on and off fully, operated under normal switching conditions. They will not then have their life span shortened as with electronic dimmable devices that can reduce luminous efficiency and safety.

HOUSING:
Two widths are available to best meet your lighting requirement, designed specifically for T5 lamps and come fully assembled. Housing is designed for damp locations and is watertight for optimal performance and durability.

REFLECTIVE:
Highly reflective MIRO 4 reflectors utilized. Consult supplier for more details on reflective options.

LENSES:
Very tough high impact shatterproof polycarbonate with lineal Fresnel prismatic diffusers as standard. Damage resistance is ideal for parking garages. Consult supplier for other lens options.

MOUNTING/HARDWARE:
Two-piece hinged latches standard. Stainless steel one-piece latches optional. Standard fixture is supplied with EASY-FIT mounting brackets. Stainless steel mounting brackets are optional. Stainless steel hardware recommended for carwashes. No hole ever has to be drilled through the housing for installation. The EASY-FIT external mounting system can provide dramatic savings by drastically reducing the installation labour.

MAINTENANCE:
I-Giant’s VP series features Tool-Free removal of the lens and gear tray for easy access to all parts in seconds. Poured in place gasket and cam latches seal the enclosure from most hostile environments.

DIMENSIONS:

SPLIT Fluorescent configuration – Simple and Unique:
Instead of one single lamp being dimmed to an inefficient 20% or less power setting the bigger of two lamps is switched OFF and the smaller one remains ON working efficiently at full power. When movement is detected and the biggest lamp is switched ON using pre-heat circuitry which gently warms the lamp for half a second before softly and gently starting it. This unique & simple split soft switching concept (Patent Pending) means that the fluorescent tubes are switched on and off fully and operated under normal switching conditions. They will not then have their life span shortened as with electronic dimmable devices that can reduce luminous efficiency and safety.

SPLIT Fluorescent configuration – None of the risks of Dimming:
Systems that use dimming often rely on the lamp being continually in operation at as little as 10% of normal power. The problem with this sort of dimming is that fluorescent tubes are not designed or manufactured to operate in this manner. Contrary to popular belief, running a tube frequently at 10% can reduce its expected lifetime by 50%. When dimmed the lamp is effectively being switched ON and OFF 100 times a second and can degrade nearly twice as fast as a tube operating properly & only at full power. Operating a tube outside of the manufacturer’s recommendations can easily lead to warranty issues and premature degradation of light quality and luminous efficacy.

SPLIT Fluorescent configuration – Safer, more Reliable and Best Value:
Using two lamps instead of one may increase initial purchase costs slightly but also significantly increases system redundancy. It is much less lightly that the two independently powered lamps will simultaneously fail than the one lamp that the two lamp split configuration replaces. The one big and one small lamp configuration lends itself beautifully for economic adaptation to being an Emergency Lighting unit. Regulations require at least a 3 hour battery pack. It is more reliable and economical to operate an 8W (1ft) tube for 3 hours than a dimmed 35W (5ft) tube. If emergency lighting has to be used then it should be with maximum luminous efficacy and reliability, the tube must be operated at full power, not dimmed.

Life time is effected by being dimmed or switched off, as is cost of operation and maintenance.

In light of major manufacturer claims that declare dimming does not effect the operational life time of T5 tubes, some things need to be considered and worded carefully.

1. When a lamp is switched off it is not in operation.
2. When a lamp is dimmed it is in operation.

Consider the scenario where a service corridor, which is also an escape route, is required to have emergency lighting levels at all times (minimum 1 lux) and a higher lux level (minimum 20 lux) when it is used by delivery and maintenance staff for 30 hours every week. Both ECO-DIM and ECO-SPLIT units could be used to provide necessary light levels at all times.

The larger and most expensive lamp in an ECO-DIM unit would be in use 24 hours every day, every year and may need changing every 2 years. For most of the 2 years it would be operating inefficiently at 15 lumens per watt.

The smaller lamp in an ECO-SPLIT unit would be in use 24 hours every day, every year and may need changing every 2 years. For most of the 2 years it would be operating efficiently at 90 lumens per watt.
The larger, more expensive lamp in an ECO-SPLIT unit would be in operation 1560 hours every year and may need changing every 5 years. For most of the 5 years it would be switched off.

Because the human eye automatically increases effective exposure time, we may easily think lux levels have only dimmed to about 30% when in reality lux levels have dimmed to less than 3%. This could potentially be dangerous as a human “thinks” they can see ok, but in reality they can not, and that’s when accidents happen. This is also why lux meters are used by inspectors to be sure light levels don’t just look safe, they need to be measured to ensure they are safe.

When the ECO-SPLIT is low lux mode (small lamp ON & large lamp OFF) , because the small lamp is operating at near full power then the fixture efficacy is still near full potential. The lux output is at least 5 times greater in brightness and 5 times more efficient than when the ECO-DIM is low lux mode (dimmed). It should be remembered that this is only a realisable advantage for the ECO-SPLIT when the observer is looking into an area lit by low lux mode and outside the range of the occupancy sensor.

High Frequency Motion Sensor - Hidden and Practical:
The High Frequency sensitivity adjustable switch is especially suitable for vapour proof fi ttings as there is no need to drill any holes for installing. The HF Sensor can see through the casing and will operate and function from inside the fi tting. Using intelligent and hi-tech features, referring to Doppler’s principle, when someone is moving within the sensors operating range the main lamp (controlled by sensor’s relay) will turn on automatically. The lamp will not turn off until everyone has left it’s operating range and no movement is detected for the full duration of the relay delay time

High Frequency Motion Sensor - Sensitive and Good for a British Climate Change:
Nowadays outdoor and indoor temperatures can easily exceed 33°C especially in ceiling, covered and roof areas and fall below 5°C just if someone leaves a door open! The problem with PIR systems is that they are heavily reliable on the environment being maintained within a narrow temperature range. PIR switches can rapidly and sharply decrease in sensitivity as temperatures rise above 33°C and even worse can fail completely (switch off) when the temperature drops to less than 5°C.