1. 5 Arrangements of LED Street Light
- a. unilateral
- b. bilateral staggered
- c. bilateral symmetrical
- d. central symmetric
- e. transverse suspension
2.How many meters between 2pcs LED street light?
| Road width | 3-5M | 6-8M | 9-11M | 12-18M |
| Lamppost height | 4M | 6M | 8M | 12M |
| GAP | 8-12M | 15-20M | 25-30M | 30-50M |
| Lamp arrangement | a | b | d | d |
| Road type | Residential street | Country road | Urban main road | Express way road |