PRODUCT OVERVIEW
L-Series High-Definition LED Signage is an advanced modular display system designed for permanent outdoor fixed installations.
FEATURES
- Unique modular design that incorporates minimal components for easy assembly and installation.
- Uses Common Anode circuits to deliver the following benefits over typical Common Cathode circuits:
- Precise power supply control.
- Reduced energy consumption.
- Protects LEDs from damage.
- Extends product lifespan.
- Extruded aluminum housing for superior heat dissipation, strength, and light weight.
- Waterproof IP66 electronic components ensure reliable performance in all environments.
- Synchronous and asynchronous control supports public cloud transmission and private cloud networks.
- Supports display networks.
- Connects though wi-fi, wired network, 4G, 5G wireless.
- Advanced software control compatible with smartphones, computers, or iPad devices.
- Optional pixel level calibration.
- 6 Year warranty.
Product Descriptions
Product Features
Easy Assembly For Any Size Display
The L Series consists of minimal components that are lightweight, rigid and connect easily. Sub frames are either 2’x4′ or 3’x4’and consist of LED modules connected to a common control box via combined data/power cables. Displays can be assembled in shop or on-site from standardized components stored in inventory, ready to be combined into any size display.
Durability Beyond Typical Displays
The L-Series outdoor LED display frame cabinet is engineered to withstand wind load force of up to 150 MPH. All aluminum module design further protects display against warping due to excessive heat common in typical LED displays.
Reinforced Frame Design
All extruded aluminum sub frames are reinforced with corner gussets to ensure lateral stability and overall rigidity.
Easy Service Access
There are only 3 internal components in the L-Series outdoor LED display system – the main controller, the module controllers and the LED modules. All components can be accessed from the rear or with a simple hex tool from the front.
Built in Safety
If the L-Series requires service, technicians will not need to handle loose LED modules. Each LED module is connected to internal safety cables to ensure safety and improve ease and speed of service.
Performs in All Weather
Unlike typical outdoor LED displays, the Envoltage L-Series is IP-67 rated, protecting internal electronics from dust, water or any pollutant. And no fans are required. The all aluminum casing acts as a heat sink and provides superior radiated thermal management.
Common Cathode LED Technology
Common cathode LED technology means individual LEDs are connected via their negative ends and driven by positive ends. In common cathode mode, R, G, B chips are separately powered with voltage and current precisely distributed to red, green, and blue diodes, and the current passes the diodes then to the negative ends of ICs.
Common Cathode VS Common Anode LED Schematic Diagram
What is the difference between the common cathode / common anode LED display?
Power supply direction. With common anode LED displays, the current flows from the PCB board to the led lights, and the RGB led light is uniformly powered, which increases the forward voltage drop of the circuit. With common cathode LED displays, current passes through the led diode to the IC negative pole as positive. The pressure is reduced and the internal conductive resistance is small.
Power supply voltage. Typical common anode LED displays send red, green and blue LED diodes voltages higher than 3.8V (such as 5V unified power supply), so the power loss is high. Common cathode LED displays base transmission on the actual voltage required by the red, green and blue LED diodes (the voltage of the red LED diode is about 2.5V and the voltage of the blue and green LED diodes is about 3.8V). This dramatically lowers the heat generated during operations of the display.
Why does common cathode technology generate less heat?
Based on accurate power control, common cathode technology can reduce the power consumption of the entire system by reducing the red LEDs’ supply voltage. Moreover, there are no extra line-scanning devices needed to achieve this. By using common cathode technology, LED display can reduce excessive heat and power consumption, pixel failure rate, and ghost lines (tailing effect), thus improving LED display’s overall performance.
How does common cathode technology save energy?
Electricity& Operating costs. Precision power supply reduces LED display power loss, saving operating costs.
Equipment investment. Lower heat generated from LEDs negates the need for fans and cooling equipment.
Maintenance and repair costs. Electronics are fully enclosed in a die-cast aluminum bottom shell, which provides superior heat dissipation increasing lifespan to about twice that of conventional led screens.
Assuming that under common anode mode a 5V voltage is used as the unified power, under common cathode mode a 2.8V is used for red LEDs, and all other conditions are the same, if the current of red LEDs accounts for 40% of the total current, then we can quickly calculate the percentage of power saved: 40%*(5-2.8)/5=17.6%. If the LED current accounts for 50% of the total current, then we can save 50%*(5-2.8)/5=22%. Therefore, there is a theoretical 17.6%~22% power savings using common cathode technology over common anode technology.
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Application Examples
