We liked the first set so much, we ordered a second set. They are very bright....I love it!! They will work on a timer as long as you don't connect the dimmer. Recommend SMY Lighting.

Amazing lights. You are provided with multiple lights for large area. Wires are easy to hook up and install is extremely easy. The sensor works great and timer also. Great value. Highly recommended for decks and exterior areas.
When the lights are on, its a beautiful soft glow that does not blind you nor does it mess with your nightvision. If you are looking for decklights, definitely do not hesitate to get these. They are simply awesome!! I am ordering 2 more sets of 20 after writing this review.

This Blue Light Therapy Lamp is superior. As the previous owner of another brand of lamp, I can knowledgeably state that this lamp is far better. For one thing, the light panel is considerably larger, providing a broader field of soothing light. For another, unlike my previous brand, the 2-level intensity of this lamp is soft and relaxing, rather than harsh and annoying. In addition, the 10- 20- and 30-minute timer intervals shut off automatically when time is up, a great advantage when I‘m too busy on my computer to keep track of therapy session length. All in all, I’m very pleased with this product—and its price—and I recommend it with confidence.