Refun Bicycle Light Set Ultra Bright Headlight (Cree XML T6 LED Flashlight), 2pcs Taillight (3 Lighting Modes), Quick Release Bicycle Accessories;

Flashlight Features:
1."O" ring sealed, Weatherproof, can be used in rainy weather
2.Made of durable, high-quality, aluminum metal case
3.Five Mode: high / middle / low / strobe / sos; No Tools Needed - Quick Release Mount
4.Powered by : 3 × AAA 1.5V battery or 18650 battery (battery is not included)
5.Size: 11.5 x 3 x 3 cm
6.Weight: 95g

Taillight Features:
1. 4 Kinds of switch:full light, flash, slow flash, off,according to your actual needs can switch quickly
2. Water resistant shower proof design - is not afraid of rain flooding
3. Install or remove without any tools you can get 3 seconds
4. One-Touch switch design, easy operation
5. All the sustainable use of light 35 hours
6. Scintillation sustainable use of 160 hours
7. Using two CR2032 button batteries
Specifications:
1. Materials: Flexible waterproof silicone
2. Light Color: Red and White
3. Silicone Color: Red and White
4.Weight:21g

Package Included:
2 x Silicone Bike LED Light
1 x flashlight
1 x 360 degree rotation

if you need batteries that are compatible with the flashlight, please refer to the link below:
http://www.amazon.com/gp/product/B00PJSV3J0