Get a quality LED light as they throw off a much more white light than a bulb. If you're still using a Mag light it's time to upgrade! Be careful of how many lumens you get. Being men we always think bigger is better but that's not the case when it comes to a trailing light. To many lumens and it washes out your vision and all you see is a big white spot on the ground. 300 lumens is the most I would go with for blood trailing and less is usually even better. The light I use for walking in is 600 lumens and has a low setting of 35 lumens as honestly that is enough for most blood trailing - the 35 not the 60. Most all flashlights are more of a spot than a flood pattern, if you're using a flood pattern them more lumens is better. This year I planned on using a Streamlight knuckle head flood with 200 lumens but both my deer dropped in sight and during daylight so hopefully I have a buddy call me to help trail so I can put it to the test.
Another item I planned on using was a thermal imager but again I didn't need it yet this year.
Save your money.