60cm Aluminum Solar Lawn Light with Super Bright LED Beads(No need commercial power) - CM-TC-00

The main use of Solar Lawn Light solar energy to work, when the sunlight during the day in the solar battery, the light energy into electricity stored in batteries, and then from the battery at night as the lawn of the LED (light emitting diode) to provide power. The main advantages of safety, energy saving, convenient, and environmental protection.

Combination of several problems in the Solar Lawn Light

(1) light sensors. Solar lawn light control switch, designers often use photosensitive resistor to automatically switch lights, solar cell itself is actually an excellent light sensors, light activated switch with it, features better than the photosensitive resistance. For just a 1.2VNi-Cd batteries using solar energy lawn lamp, solar cell module from the four solar cells in series, low voltage, low light at lower voltage, and even days without the black voltage is lower than 0. 7V, causing light control switch failure. In this case, just add a transistor directly coupled to enlarge, you can solve the problem.
(2) the level of battery voltage control load by size. Solar lawn often time-continuous rain can be maintained high, and this increases system cost. We are in continuous rain reduced the battery voltage decreases and the number of LED access, or to reduce solar lawn light day time, so we can reduce the system cost.
(3) solar cells encapsulated form. At present solar cells are mainly two kinds of packages, laminating and epoxy. Solar cell lamination process can guarantee more than 25 years of working life, Epoxy though it was beautiful, but the solar battery life of only 1-2 years. Therefore, 1W following low-power solar lawn light, life requirements in the case of not too high, you can use epoxy package, there are provisions for the use of solar energy lawn lamp life, it is recommended to use laminated packages.
(4) flashes dimmer. Gradually dimming light is a good way to saving one hand, it can increase the effects of solar lawn light, on the other hand can be controlled by changing the duty cycle of the battery flashing the average output current, extended working hours system, or under the same conditions, can be reduced solar power, the cost will be significantly reduced.
(5) three-color color switching speed of energy efficient lamps. This problem is very important, it even determines the life of solar lawn lamp, three-color color Energy efficient start up to 10-20 times the starting current, the system to withstand such a large current circumstances, may have a significant voltage drop solar lawn light can not start or repeated start, until the damage.