How to choose solar street light? How to configure solar street light? solar

Let's take a specific example below: 1. LED solar street light, single-channel, 40W, 24V system; 2. The local average daily effective illumination is calculated as 4 hours; 3. The daily discharge time is 10 hours, (from 7:00 pm to 5:00 am For example) 4. 5 days of continuous rainy days (plus the electricity consumption of the night before the rainy days, 6 days). Current u003d 40W÷24V u003d 1.67 A Calculated battery u003d 1.67A × 10h × (5 + 1) days u003d 1.67A × 60h u003d 100 AH Battery charge and discharge reserve 20% capacity; the actual current of the street lamp is above 2A (plus 20% loss , including constant current source, line loss, etc.) Practical battery needs u003d 100AH u200bu200bplus 20% reserved capacity, plus 20% loss. 100AH u200bu200b÷ 80% × 120% u003d 150AH The practical battery is 24V /150AH, and two sets of 12V batteries are required. Total: 300AH Calculation panel: 1. LED solar street light 40W, current: 1.67A2, daily discharge time 10 hours (after night) 7:00 - 5:00 am as an example) 3. At least 20% of the battery panel is reserved 4. The local effective light is calculated based on the average daily 4h WP÷17.4V u003d (1.67A × 10h × 120%) ÷ 4 hWP u003d 87W practical constant current The comprehensive loss such as source loss and line loss is around 20%. The actual battery board needs u003d 87W × 120% u003d 104W. The actual battery board needs 24V/104W, so two 12V battery boards are required in total: 208W In this era of price confusion, choosing lamps Just like choosing a computer, it’s not about being expensive, but being cheap is cost-effective. You still need to understand the price/performance ratio.
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Overall, solar lights may be a great way for manufacturers to expand their use of technology, but the price could present a significant hurdle for some businesses.
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