Motorcycle MP3 player with speaker
5 inch digital car bass tube with FM transmitter
Specifications:
1) With5 inch speaker, which makes music sounds more perspective.
2) Embedded amplifier, shows us a professional amplifier and subwoofer, which makes subwoofer smart, fashionable and perfectly.
3) Support USB, SD card slot and MP3 format ( line in socket), which provides you more music source are supported by our WeiDa subwoofers.
4) With remote control function
5) Previous/next button, bass
6) High power output.
7) FM radio function for option.
8) 12V
9) 6850C
10) Audio output
11) +10/-10 songs
12) Indicator light
13) Volume control
14) Pause playback
15) Remote control
16) Stations memory
17) Auto seek stations
18) Power output: 2x15W
19) USB mobile charger
20) Digital songs selection(by remote control)
21) Last position memory
22) Built in remote receiver
23) Repeat and mute function
24) EQ effect: Pop-rock-classic-jazz
25) Power direct connector, TRE OUT connector
26) USB port, SD-MMC slot, AUX in, compatible mp3 format
Optional voltage: DC12V or 24V, AC220V.
With plastic cover on both ends for option.
Motorcycle MP3 player with speaker,High Quality Motorcycle MP3 player with speaker,Motorcycle MP3 player with speaker Details, CN Jiangmen soundrace electronics and technology co.,ltd. , https://www.soundracegroup.com
In the Led Light source part, with the rapid improvement of the luminous efficiency of white LEDs and the rapid price reduction, white LEDs with a color rendering index of 70-90 are increasingly used in the field of architectural lighting. White LED has the advantages of low voltage, low power consumption, high reliability and long life. It is an environmentally friendly and energy-saving green lighting source that can be used in architectural floodlighting and decorative lanterns. On the other hand, white LED technology still needs to accumulate and mature, and research on the three elements of chip, phosphor and package, improve chip quality and structure, optimize the design of RGB dimming driver and mixed light control circuit, and improve luminous efficiency. Reduce the color temperature deviation. On the LED planar light source, it is also necessary to improve the reliability and overcome common phenomena such as spot light spots and uneven color mixing.
Also of concern is another challenge in architectural lighting applications, namely the ability of LED luminaires to adapt to outdoor complex environments such as climate, water, dust, acid and alkali corrosion. For example, the heat-dissipation problems encountered by high-power LEDs in the outdoors; the problems caused by the breakdown of buildings and buildings caused by lightning weather; the protection performance of lamps in rain and water, etc., all of which require component selection and design in the lamps. The next step.
The relevant person in charge of Lelei Optoelectronics Technology (Shanghai) Co., Ltd. said that it is very important to improve the reliability of LED products and control systems in outdoor use places. In the case of lightning protection, it can be protected by electrostatic (ESD) special protective elements for inductive lightning strikes. In order to improve the waterproof ability, different types of lamps can be waterproofed in key parts. For example, waterproof and ventilated screw plugs are used inside the lamps. The side covers at both ends of the lamps are made of imported precision anti-aging silicone rubber. The dimming decoder and the LED illuminator are integrated into an integrated design to solve the problem of external control system wiring and decoder waterproofing; in the buried lamp and the wall lamp, an anti-negative pressure special cable can be used to prevent the negative pressure inside the lamp from absorbing water; The degree of protection of underwater luminaires should reach a high level of IP68. In the heat dissipation design of high-power LED lamps, an integrated structure can be selected, the heat dissipation area is greatly increased, and the airflow heat dissipation channel is reserved to ensure the luminous efficiency and service life of the LED.
In addition, in order to reduce the amount of glare, to eliminate the impact of light pollution on the human eye, glare control must also start from the design of the luminaire. At present, most manufacturers use professional optical design methods (such as using frosted tempered glass, new light diffusion coating, or adjusting the beam angle, etc.) to properly reduce the illumination brightness and further improve the lighting quality. It also helps to achieve the goal of energy saving.
The reason why LED lighting can be favored by green buildings is inseparable from the characteristics of digital control, energy saving and environmental protection. From the latest development of the architectural lighting application market, a more obvious trend is that more and more network building, dimming and autonomously controlled LED building lighting control solutions appear on the market. These control schemes are based on front-end passive infrared. (IR) sensors, timers or ambient light sensors, etc., reduce the illumination brightness when no one is active, and support more lighting network nodes through a variety of network technologies to achieve a complete set of environmental protection lighting energy saving measures.
But in fact, the current LED architectural lighting market is still in the initial stage of development of intelligent LED control solutions. Shakeshaft said: "Real smart LED lighting is not simply replacing HID or fluorescent light with LED light source, but will bring A new power-saving and energy-saving mode that improves lighting quality while providing longer life and lower operating and maintenance costs. One of the important trends is the wider adoption of network technology, whether it is the application of power lines or mesh networks (Mesh). Or other wireless technologies.†ON Semiconductor is leveraging its own line of communication modems, such as power line communication (PLC) modems or ZigBee modems, to combine these communication modems with sensor components and LED drivers to form a complete smart LED. Lighting control system.
The industry believes that the future market development of LED architectural lighting must be standardized, high reliability, low-cost intelligent lighting control system. "The future of LED lighting is not limited to products such as replacement bulbs. The future lies in the broad LED lighting market, including building system intelligent lighting control systems, wireless WiFi dimming systems, etc., which will significantly improve the efficiency of lighting systems. And the ease of use and maintenance, and effectively reduce the overall cost of use, and ultimately achieve energy saving and environmental protection effects, in addition to the latest Internet control and storage technology, enabling IoT applications for lighting."
NXP Semiconductors unveils the industry's first DALI and DMX512 wired lighting control system development platform based on a low-cost, low-power 32-bit ARM Cortex-M0 processor. NXP Semiconductors' goal is to combine powerful LED driver technology with localized R&D and technical support teams, from wired lighting and control networks using DALI, DMX and KNX, to wireless solutions using JenNet-IP and ZigBee, offer a range of energy-saving solutions for smart lighting networks for home, building and building exteriors.
(This article is reproduced on the Internet. The texts and opinions expressed in this article have not been confirmed by this site, nor do they represent the position of Gaogong LED. Readers need to verify the relevant content by themselves.) 
In the domestic "GB50043-2004 Architectural Lighting Design Standards" and other series of specifications, the number of lamps used in building sites (illumination, light efficiency), lighting quality (uniformity, color temperature, color rendering index, etc.), energy saving ( LPD) and safety performance have specific requirements. LED luminaires are being introduced into the standard system of updating one layer. At the same time, LED lighting needs to be further improved in the selection design of the light source and the structural design of the overall luminaire. To meet the application requirements of green buildings.