Review on CINOTON 26W LED Wall Pack Light With Dusk To Dawn Sensor, 3000LM[100-277Vac/160W HID/HPS Equiv.] IP65 Waterproof Outdoor Security Flood Lighting For Yard Patio Barn Porch 3000K-Warm White 2 Pack-Black by Leon Yulharmanto

My first experience had one unit which flickers constantly at dusk through the night. covered all reflective surfaces and still flickered. They sent me a new unit, for free, promptly (6 days) and said keep the old unit.Extremely good service! Prompt, courteous, etc. New unit is fine.Only negatives are the install part which for me was tedious (not sure what circuit breaker to turn off, the old fixture was difficult to remove, etc. took 2.5 hrs. Aside from that, these units are tough, extremely bright, use little energy and look nice. I wholeheartedly give 5 stars1. difficult installation. At least for me, since the old lights were using a box which does not fit the holes for this product, needed to use lots of drilling, cut off grinding wheel, etc.2. Flickers every 10 sec at dusk, and at night, taped the photocell and it stays on all the time.3. Super bright. One of these illuminates the whole long driveway i have4. quick shipping5. solid construction6. Would benefit from adjustable photocell7. I am very impressed and it was worth the effort!2nd light was even harder to install, however, it does not flicker and works perfectly. Still waiting to see if seller will send me a replacement first, before i send the flickering light back to them