If you use it to approach tree stands before daylight I highly recommend it. True deer may not mind a white light but I assure you birds and turkeys do. I cannot tell you how many times I had birds fly off alarm sounds when I used a traditional white light. Now that I use red it happens a heck of a lot less. Several times I have flipped from red to white and had birds immediately alert. I use red light when walking in, while climbing my tree, if I feel relatively safe there are not a lot of birds nesting near, I may switch to a dim white light while climbing. Most of the time I just stick with a red light.