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FAQ
Frequently Asked QuestionsA. Working Principle and Characteristics of Solar Light
1. What is a Solar Light?
A Solar Light converts the daytime sunlight into electrical energy through the solar collector panel, and turns on at night automatically. It operates without any needs of high voltage transmission line, transformer or wiring and that is the reason why Solar Light is suitable for the use in remote areas, such as garden. 2. How does a Solar Light work?
Each Solar Light has a sophisticated solar collector panel that is used as a converter to convert the solar energy into electrical energy during daytime. This electrical energy is then stored in the highly efficient rechargeable battery, which powers the Solar Light at night. 3. What advantages does a Solar Light offer?
Solar Light is the safest and easiest kind of outdoor light to be installed. It does not require any transformer or wire and cable that will not cause any electrical shock and fire from the light. It is suitable for using in the areas where it is inconvenient to use hard-wired type light, for example, locations near water, or any remote areas. Besides these, Solar Light is an energy saving appliance as it only runs off the Sun¡¦s energy. There is no discharge wastes or payment for the electrical bill when using the Solar Light. 4. How durable is a Solar collector panel?
Our Solar Lights use the sophisticated crystalline silicone solar or amorphous silicone collector panels, which are waterproofed, high quality and not easy break. However, it is not recommended to step on the panels. Under normal condition, the panel has a 10 years or more lifetime. Though, due to various unfavorable weather conditions, the conversion efficiency of the panels will be loosed. 5. What type of light bulb is used in a Solar Light? Does the light bulb need replace frequently?
There is a variety of light sources which could be used in the Solar Light. The most popular one used is Light Emitting Diode (LED) because of its dependability, low power consumption and high emitting light efficiency. Nowadays, LEDs are available in red, green, blue, amber and white, while amber and white LEDs are being the most popular choices for using in the Solar Light. Since the life expectancy of LEDs would typically exceed twenty thousand (50,000) hours, it could be assured that the LEDs used in Solar Light would not go wrong and there is no need to replace them. 6. What type of battery is used in a Solar Light? How often does the battery need to be replaced?
Solar Light utilizes AA/AAA, NiCad (Nickel Cadmium) rechargeable battery or NiMh battery. These 1.2V rechargeable batteries are available at most of home centers and electronic stores. The rechargeable batteries are designed to have a life expectancy of about sixteen to thirty-two months (like mobile phone battery) under normal condition, and their output power would diminish gradually though. If the brightness of the Solar Light after a sufficient sun exposure is still fading, or the duration of lighting becomes much shorter than usual, then there is a need to replace the battery. To be reminded, the battery replaced has to be a rechargeable one rather than a non-rechargeable. 7. Are there any disadvantages of using Solar Light?
It is no doubt that there are some disadvantages of using the Solar Light. Therefore, it is important to acquaint with the limitations of the Solar Light to avoid any disappointment before using. As mentioned before, the Solar Light operates with its solar collector panel that converts the solar energy into electrical energy and stores into the rechargeable battery. It is essential that the Solar Light has to be positioned in an area where the panel could be directly exposed under sunlight. The longer sun exposure during daytime, the longer the Solar Light stays on at night. Nevertheless, the performance of the solar collector panels could be adversely affected by many factors, such as the seasonal changes, weather conditions and geographical locations. These are the major disadvantages associated with the Solar Light. For instance, during summer time, the Solar Light could stay on longer while during winter time, cloudy or rainy day, its light duration time become shorter. Moreover, overhanging trees, shrubbery, houses or shadows could obstruct the solar collector panel and diminish the performance of the Solar Light. 8. Solar Lights are usually not as bright as most other forms of outdoor low voltage landscape lights. Is this a disadvantage of the Solar Light?
The photoelectric conversion efficiency of the solar collector panels is not high enough that the Solar Light has to utilize small power bulb. This is why the light output of the Solar Light is much lower than that of other outdoor low voltage landscape light. Some would feel that it is one of the disadvantages of the Solar Light, however, lights with different light outputs could have different applications. For example, some would welcome the softer light to outline the locations of darkened obstacles in the gardens at night and Solar Light is one of the choices for this application. B. Maintenance of Solar Light
1. Where is the best location for installation of the Solar Light?
In order to obtain the best performance of the Solar Light, the light should be well positioned in the non-shaded area, so that the solar collector panel would absorb adequate sunlight to charge the battery inside the Solar Light (Fig. 1). If the panel is shaded by some obstacles, then it would not receive enough sunlight to charge up the battery, as a result, the efficiency would be reduced (Fig. 2). In addition, the Solar Light should not be placed near other light sources and at least 4 feet farther from one another. This could prevent the light from becoming flicker or not turning on properly at night (Fig. 8). (Fig. 8).
2. Does the Solar Light have to be switched on manually?
Each Solar Light has a light sensor that would turn on the light automatically at night and charge the battery during daytime. There is no need to switch on the lights manually. However, for the first time of using the Solar Light, users are required to switch the button to "ON" position (Some of our Solar Lights have on/off switch, Fig. 3), or remove the plastic strip between the battery electrodes and terminals of the battery compartment according to the direction shown on the strip. This establishes a valid connection between the battery and the battery compartment in order to charge up the battery (Fig. 4). Then the Solar Light would be turned on and off automatically everyday.
3. Solar Light has optimum performance during sunny summers. However, if I live in a place that is always rainy, cloudy or even has harsh winter with little sunlight, does the Solar light suit me?
Solar Light is designed for using under different weather conditions. The on time period of the Solar Light would be varied according to the weather and seasonal conditions. Since the easy installation of the Solar Light, some of our customers store the lights in the fall and put them out again in the spring. Therefore, our Solar Light is suitable for most weather conditions. 4. Why does my Solar Light not turn on automatically at night after a fully sun exposure during daytime?
The following are the reasons why the Solar Light does not turn on automatically. a. Dirty Solar collector panel
Any dirt on the solar collector panel would not permit the battery from charging. This would result from not turning on the light automatically. To solve this, clean the panel with a soft cloth or paper towel to remove the dirty from the panel. It is not allowed to scratch the panel surface with hard objects (Fig. 5).
b. Poor-located of Solar Light
Shaded by trees, leaves, houses or shadows would prevent the battery from charging. Relocate the Solar Light in the non-shaded areas (Fig. 2). c. Poor connection between battery and battery compartment
Due to various weather conditions, the battery electrodes and the terminals of the battery compartment may become oxidized or cover with dirt. This would cause the poor connection between the battery and the terminals. Remove the oxide or dirty from the battery and terminals to make sure there is a good connection between them (Fig. 6). d. Aged battery
After a period of using, the battery inside the Solar Light becomes aged. This would diminish the brightness of the Solar Light. Replace a new rechargeable battery with same size and rating. e. Reversed-polarity of battery
Reversed polarity of installed battery would prevent the battery from charging and working as normal. Check the polarity of the battery and re-install the battery following the "+" and "-" marks shown on the battery compartment (Fig. 7). f. Too close with other light sources
The Solar Light would not turn on properly or would become flicker at night if it is located too close with other light sources. Reposition the Solar Light so that it is far away from other light sources (Fig. 8). C.
1. Read the "Instructions for Using of the Solar Light" carefully.
2. Replace with rechargeable battery having the same size and no less capacity than the old one. Never replace with a non-rechargeable (Fig. 9)
3. Install the batteries according to the positive (+) mark and negative (-) mark, which are stamped in the battery compartment.
4. Remove any dirt from the battery compartment before replacing the battery in order to ensure good connection between the battery compartment and the battery (Fig. 6).
D. Attention to be paid for the first time of using the Solar Light
1. Read carefully the "Instruction for Using Supplied with the Solar Light" to have a comprehensive understanding of the Solar Light.
2. Check all the parts listed which are completed and undamaged.
3. Follow the "Instructions for Assembling of the Solar Light" when assemble the Solar Light.
4. Install the Solar Light in a non-shaded location (Fig. 1).
5. Expose the Solar Light to full direct sunlight for a whole day to fully charge the battery in order to activate the rechargeable battery to its maximum capacity.
6. Switch the manual button to "ON" position (Some of our Solar Lights have on/off switch, Fig. 3) or pull out the plastic strip to ensure valid connection between the battery and terminal inside the battery compartment (Fig. 4).
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